Comfort Audio DG05T Wireless Microphone User Manual Microphone DM90

Comfort Audio Inc. Wireless Microphone Microphone DM90

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Comfort DigisystemMicrophone DM90Instructions for useEnglish

ContentsI. User guide..................................................................71. Introduction.........................................................9Your device...................................................................92. Getting started..................................................15Charge........................................................................15Start up......................................................................17Use the neckloop.......................................................17Navigate the menu.....................................................19Pair a Bluetooth device..............................................203. Usage................................................................23Telephone conversations...........................................23Conversations and smaller meetings.......................25External audio sources..............................................25II. For professionals....................................................271. Basic setup........................................................29Change the menu language......................................29Wireless transmitter.................................................29Neckloop receiver......................................................302. Pairing Comfort Digisystem devices..................31The pairing button.....................................................31Change channel.........................................................32Send pairing information...........................................33Receive pairing information......................................343Microphone DM90

3. Advanced features.............................................37Microphone modes....................................................37Volume limits.............................................................38Bluetooth settings.....................................................39Lock the buttons........................................................41Name the device........................................................41PIN code settings.......................................................41Reset all settings.......................................................43III. Product information...............................................451. Menu overview..................................................47Back...........................................................................47Bluetooth...................................................................47Key Lock....................................................................48Advanced...................................................................482. Function indicator.............................................493. Optional accessories.........................................514. Technical specifications....................................53IV. Miscellaneous.........................................................551. Radio.................................................................57Channel planning.......................................................57Radio range................................................................572. Battery maintenance.........................................593. Troubleshooting................................................61Microphone DM904

Service and warranty..................................................63Contact information.....................................................65Product symbols..........................................................675Microphone DM90

Microphone DM906

I. User guide7Microphone DM90

Introduction1.Thank you for choosing Microphone DM90!Microphone DM90 is part of Comfort Digisystem™ that uses digitalwireless technology to give you the best sound quality available,together with secured transmission to prevent eavesdropping.To get the most out of your new product, please read theseinstructions before using it for the first time. Take special noticeto the printed document Important Safety Instructions includedin the box.Your deviceMicrophone DM90 is a telephone solution for your hearing aid.It can be used either in conjunction with one of Comfort Audio'sear level receivers, or by it self with the accompanying neckloop.Consult your hearing care professional to decide which optionis right for you.It also doubles as a conversation amplifier for the occasionswhen your hearing aid alone is not sufficient.Bluetooth®Thanks to Bluetooth technology this product can be used as awireless handsfree for any Bluetooth equipped phone. It alsosupports audio streaming from devices such as smart phonesand computers.9Microphone DM90

SST™SecureStream Technology (SST) is Comfort Audio's proprietarydigital transmission technology. It lets you communicate securelyand latency free with other Comfort Digisystem devices.Microphone DM9010

Overview123425461211109871. Answer button 2. Microphone3. Function indicator4. Neckloop output5. Power button 6. Volume button 7. Clip8. Aux input and output9. Menu controller 10. Pairing button 11. Charger input12. Display11Microphone DM90

DisplayCh:2“NAME”12345678910111. Current channel2. Battery status3. Signal strength4. Key lock padlock5. Volume bar6. Unit name7. Current aux setting8. Current microphone mode9. Bluetooth enabled10. Bluetooth connection status11. Current SST modeMicrophone DM9012

Included accessoriesMicrofibre pouchClip on microphonePower supplyCable splitNeck loop Digisystem13Microphone DM90

Audio-kitCar charger incl USBMicrophone DM9014

Getting started2.This section will teach you how to perform the basic steps neededto get started.ChargeCharging can be done at any time. If you make it routine to chargethe unit whenever you do not use it, the unit is always ready foruse when you need it.1.Insert the supplied charger into the charger input.Caution: Only use the charger supplied by Comfort AudioAB. Using any other type of charger might damage yourdevice.15Microphone DM90

2.Plug the charger into the wall socket.The function indicator turns red to indicate charging.!Note: The unit might become warm during charging, thisis entirely normal. The unit is equipped with overcharging-and temperature monitoring to protect the batteries.The charging is done when the function indicator turns green.Microphone DM9016

Start upPress until the start up bar is fully lit.Use the neckloopIf you are going to use your product with a hearing aid or hearingimplant in the T- or M/T-position, you need to connect theneckloop and wear it around your neck.17Microphone DM90

1.Connect one end of the neckloop to the sockets on top of theunit.2.Place the neckloop behind your neck.Microphone DM9018

3.Connect the other end of the neckloop.!Important: Make sure the neckloop is inserted properly.Improper insertion might cause you to drop the device ordamage the connections.4.Switch your hearing aid or hearing implant into its T- orM/T-position.You should now hear the sound come through your hearing aid.Navigate the menuYou can use on the side of the unit to navigate your waythrough the menu.19Microphone DM90

1.Press to activate the menu.2.Flick the controller up or down to select the desired menuoption.3.Press to enter the selected sub menu or activate theselected menu option.4.When done, use the Back option to move to the previousmenu.Pair a Bluetooth deviceMicrophone DM90 and the Bluetooth device needs to be pairedbefore they can be used together.Microphone DM9020

1.From Microphone DM90, select Bluetooth > Pair BT.The pairing sequence will start, which means that the unitis discoverable by any Bluetooth device.Start pairingsequence inyour phonePIN:00002.Search for new equipment on your Bluetooth device (pleaserefer to your user manual).3.When found, select DM90 in the list of found devices.4.If asked for a PIN, enter the PIN code shown in the displayof your Comfort Digisystem unit.If the pairing is successful Paired with and the name of yourBluetooth device will appear in the display.Pairedwith"name"21Microphone DM90

Usage3.Your product is highly flexible and well suited for severalsituations where good speech perception is important.Telephone conversationsHearing on the phone is often difficult when using hearing aids.Your Microphone DM90 can help you hear clearly on a Bluetoothenabled phone.Answer a callWhen the phone rings, the text Answer? will be shown in thedisplay.1.To answer, press .23Microphone DM90

2.When done talking, hang up by pressing again, or byusing your phone.Make a callMicrophone DM90 needs to be paired with your telephone.On most phones you can initiate a call from the phone or via theBluetooth headset.1.Use one of the following methods to make a call:DescriptionOptionThe sound will automaticallybe transferred to MicrophoneDM90.Use your phone to dial thenumber.Press for approx. 2 sec.Re-dial the last callednumber.Press briefly, approx 1/2sec.Activate voice dialing.!Note: The different dialing options is dependent on thephone being used. Please refer to the user manual of yourphone.2.When done talking, hang up by pressing again, or byusing your phone.Microphone DM9024

Conversations and smaller meetingsA hearing aid is usually not enough if you are to hear well atwork. Background noise such as murmur, telephone signals,and the scrape of chairs makes it difficult to hear what yourcolleagues are saying.Use as a conversation amplifierThe built-in microphone lets you use your product as aconversation amplifier to amplify the voices of persons withinclose range.1.Make sure the neckloop is connected and hung around yourneck.2.Switch your hearing aid into the appropriate program.DescriptionOptionIf you are using a mini receiver.FM or FM/MIf you are using a neckloop.T or M/T3.Adjust the volume by using till you find a suitable level.Tip: The built-in microphone can be toggled on and off atany time by pushing downward for 3 sec.External audio sourcesYou can connect any sound source that has a line out socket toyour device. This lets you listen to radio, conference telephones,25Microphone DM90

voice recorders and the like. It is also possible to connect anexternal microphone, such as the included clip-on microphone,or a pair of headphones.Connect an external audio sourceConnecting an external audio source will bring up a menu whereyou can select the type of device you have connected.1.Connect your external audio source to the aux output.For line sources you can use the supplied audio cable.2.Select the option that corresponds to the device you haveconnected.DescriptionOptionComputer, TV, music player etc.Line InBoom microphone, clip onmicrophone etc.Extern MicHeadphones or earphones.Head Phones3.Adjust the volume by using till you find a suitable level.Microphone DM9026

II. For professionalsThe following sections covers advanced features and proceduresprimarily intended for professionals and advanced users.27Microphone DM90

Basic setup1.Before setting up the product, you should decide whether itshould be used as a transmitter or a receiver. You should alsomake sure that the menu is set to the preferred language.Change the menu languageThe default menu language is English. You can change languagefrom the menu Settings.1.Select Advanced > Settings > Language.2.Select the language you want from the list of availablelanguages.Wireless transmitterWhen used together with an ear level receiver, such as MicroReceiver DT20 or Receiver DE10, Microphone DM90 can be setto transmit the sound wirelessly by radio. The built in microphonewill then act as a close range microphone that can be used asa conversation amplifier or, for example, a lecture microphoneat meetings.This option is likely to provide the best sound quality as there isno risk of interference from stray magnetic fields.Configure Microphone DM90 as a transmitterIf you opt for an ear level receiver, your unit should be configuredas transmitter.1.Select Advanced > SST Radio > Mode.2.Check Transmitter.29Microphone DM90

3.Adjust the volume by using till you find a suitable level.Neckloop receiverIf the hearing aid used with Microphone DM90 is equipped witha telecoil, the microphone can act as a neckloop receiver forother Comfort Digisystem microphones. This lets you combineit with a range of microphones that provides solutions for severalcommon problem areas. This solution is convenient if, forexample, the hearing aid does not have a DAI connection.Configure Microphone DM90 as a receiverBy configuring Microphone DM90 as a receiver for a ComfortDigisystem microphone, the sound will be transferred to thehearing aid through the neckloop.1.Select Advanced > SST Radio > Mode.2.Check Receiver.Microphone DM9030

Pairing Comfort Digisystemdevices2.By pairing two or more Comfort Digisystem devices you ensurethat they can communicate securely with each other.Comfort Digisystem is a digitally encrypted communicationsystem that relies on unique code keys to provide transmissionsecurity. Any units that are to be used together needs to be setto the same channel and share the same code key.When you perform a pairing procedure you send informationabout the channel and code key from one unit to one or severalothers. This lets you create a channel and code key combinationon one unit and distribute it to other units to form a system.The information about the channel and code key is referred toas pairing information. Microphone DM90 is able to both sendand receive pairing information.!Important: At delivery all units share the same factory codekey. To make the system secure, you need to generate a newcode key.The pairing buttonAll Comfort Digisystem units are equipped with a pairing button.The pairing button gives you quick access to the pairing featuresof the device.31Microphone DM90

Table 1: Pairing short cuts accessible through the pairingbutton.DescriptionOptionTakes you to the pairing menu.A single press.Sets the unit to receive pairinginformation. (For units withmore than one channel, thisaffects the transmitter channelonly.)A long press.Sends pairing information.(For units with more than onechannel, this affects thetransmitter channel only.)A double press.Change channelIf a channel does not suit your setup, or if you are experiencinginterference from some other radio source, you can change toa different channel via the Channel menu.1.Select Advanced > SST Radio > Channel.2.Choose the channel you wish to use in the channel list.Back1 863.250 MHz2 864.000 MHz3 864.750 MHzThe green circle next to the frequency indicates that thechannel is free from interference. If the channel is occupiedthe circle will be grey.Microphone DM9032

Available channelsComfort Digisystem has a total of 38 channels to choose from.These channels should not require a license in North America.However, always verify with the local frequency assignmentauthority which channels are free to use and which require alicence.Send pairing informationBy sending pairing information from Microphone DM90 you cansynchronise its channel and code key with another unit. Anyexisting pairing information in the other unit will be overwritten.1.Select Advanced > SST Radio > Pair2.Set the unit or units that you would like to pair withMicrophone DM90 to receive pairing information.33Microphone DM90

3.To send the pairing information, select one of the followingoptions:DescriptionOptionSend the existing code key.Send InfoBackSend InfoReceive InfoNew Code KeyGenerate and send a new codekey.New Code KeyBackSend InfoReceive InfoNew Code Key!Important: This will break thepairing with any previouslypaired units.When the info is sent the text Info sent! will appear inthe display.Receive pairing informationWhen the unit is set to receive pairing information its currentchannel and code key will be overwritten by the receivedinformation.1.Set the unit to receive information by selecting Advanced >SST Radio > Pair.2.Select Receive Info.3.Send pairing information from the unit you are pairing withMicrophone DM90.Microphone DM9034

If the pairing is successful, the word OK will appear in the displayof Microphone DM90.35Microphone DM90

Advanced features3.This product has several features and settings that lets you tailorthe unit to the user's specific needs.Microphone modesThe product features two different microphones modes; oneomni directional, which picks ups sound from all directions anda zoom mode, which picks up sound primarily from the forwarddirection. The zoom mode is useful in noisy environments or ifthere is a need to isolate a particular sound source. The zoommode is the default mode for telephony.The active microphone mode is indicated by the symbol in thecenter of the display.Table 2: Microphone mode symbolsDescriptionSymbolOmni directional mode.Default for conversations.Zoom mode. Default fortelephony.Disable the zoom mode for telephonyIf you prefer the omni directional mode you can disable the zoommode for the Bluetooth units.You can disable the zoom mode for each unit separately. Thisallows you to use different settings for different applications.37Microphone DM90

1.Select Bluetooth > BT Units.2.Select the BT unit that you like to adjust.3.Clear the Zoom Mic check box.Enable the zoom microphone for conversationsIf you prefer the zoom microphone during conversations you canenable it from the audio settings.Check Advanced > Audio > Zoom Mic.Volume limitsSetting the volume too loud can be unpleasant and potentiallycause damage to the hearing. This product is equipped with amaximum volume feature that limits the loudness to a predefinedlevel that you deem safe. You can also set a fixed volume levelif you prefer control of the volume from the hearing aid only.Set a maximum volume levelTo prevent the volume from being turned up too loud by accident,you can set a maximum allowed volume level.1.Select Advanced > Audio > Max Volume.2.Select Settings under Max Volume.3.Adjust the volume to the desired level.4.Press to confirm you choice.Set a fixed volume levelIf there is no need of a user adjustable volume, you can lock thevolume to a fixed level.1.Select Advanced > Audio > Max Volume.Microphone DM9038

2.Select Settings under Fix Volume.3.Adjust the volume to the desired level.4.Press to confirm you choice.Bluetooth settingsEach of the paired Bluetooth units have their own settings thatlet you customise things such as call volume and microphonesensitivity. This is useful if for example a particular phone doesnot produce enough output volume or if the receiving party findsthe voice output too weak or strong. The settings can be adjustedduring a phone call.Set the default unitThe Bluetooth device set as the default unit will be used forphone specific features such as voice dialing.1.Select Bluetooth > BT Units.2.Select the BT unit you want to set as default and checkDefault Unit.Adjust the volume for the userTo compensate for differences between telephones, you can finetune the sound level from the phone. This affects the sound thatthe user hears.1.Select Bluetooth > BT Units.2.From the list of paired devices, select the BT unit that youlike to adjust.3.Select Sound Lev. and adjust the level by flicking up ordown.4.Press to confirm you choice.39Microphone DM90

Adjust the volume for the receiving partyIf the receiving party finds the volume to be unsatisfactory youcan fine tune the microphone sensitivity by ±6 dB.The output volume can vary between different telephones andbrands, so it is advisable to verify that you have an acceptablevolume for each of the paired telephones.1.Select Bluetooth > BT Units.2.From the list of paired devices, select the BT unit that youlike to adjust.3.Select Mic Sens. and adjust the level by flicking up ordown.4.Press to confirm your choice.Activate voice monitoringHearing your own voice during telephone calls can prevent youfrom talking to loud or feeling confined. Monitoring can beactivated for each of the paired BT units separately.1.Select Bluetooth > BT Units.2.From the list of paired devices, select the BT unit that youlike to adjust.3.Select Settings.4.Check Own Voice.Delete a Bluetooth unitMicrophone DM90 can be paired to a maximum of two Bluetoothunits. If you need to pair a third unit, you have to delete one ofthe previous units.1.Select Bluetooth > BT Units.Microphone DM9040

2.Select the unit you wish to delete.3.Select Delete Unit.Lock the buttonsIf you want to avoid accidental button presses it is possible tolock all functions by activating the key lock. (You can always usethe power button regardless of the key lock.)Select Key Lock.An orange padlock symbol will appear in the display ofMicrophone DM90Name the deviceTo help identify the device, you can enter a name that will beshown in the display and during Bluetooth pairing.1.Select Advanced > Settings > Name.2.Use to scroll through the list of characters. Press to enter the selected character.3.When done select . (To cancel, select instead.)PIN code settingsTo prevent tampering or unintentional changes of the settings,you can lock the product with a four digit PIN code.Set a PIN Code1.Select Advanced > Settings > PIN Code.2.Check Enabled.41Microphone DM90

3.Use to scroll though the list of characters. Press to enter the selected character.Enter new PIN1000 014.When done select . (To cancel, select instead.)!Important: Make note of the PIN code. If you forget thePIN, contact your point of purchase.Choose which functions to lockBy selecting which functions to lock with the PIN code you canallow access to commonly used functions while preventingaccess to others.1.Select Advanced > Settings > PIN Code > Lock Select.2.Select the functions you want to lock:DescriptionOptionLock access to the advanced menu.AdvancedLock access to all menus.All MenusChange PIN code1.Select Advanced > Settings > PIN Code.Microphone DM9042

2.Enter the current PIN code.3.Select Change PIN.4.Enter the new PIN code.5.Select to confirm PIN.Disable the PIN codeIf you no longer wish to lock access to the unit, you can disablethe PIN code. The PIN will be reset and a new code will have tobe entered if you choose to enable it again.1.Select Advanced > Settings > PIN Code.2.Enter the current PIN code.3.Uncheck the Enabled option.Reset all settingsIf you need to reset all settings to their default values, you cando a factory reset.Select Advanced > Settings > Factory Reset.!Important: All settings will be lost. Any pairing needs tobe redone.43Microphone DM90

III. Product information45Microphone DM90

Menu overview1.BackBackEnableMix levelPair BTBT UnitsBluetoothKey LockBackAux in/outAudioSST RadioSettingsAboutAdvancedBackLeave the current menu.BluetoothThis menu contains Bluetooth options and lets you pair the unitwith other Bluetooth devices.Activate and deactivate the Bluetoothfunction.EnableSet the level of your own voice during phonecalls.Mix level47Microphone DM90

Start the Bluetooth pairing procedure.Pair BTList your paired Bluetooth devices andaccess their settings.BT UnitsKey LockManually activate the key lock.AdvancedThe menu Advanced contains advanced settings that lets youadapt the product to your specific needs.Various level adjustments and settings forsound sources connected to the aux socket.Aux in/outSettings for maximum volume and tonecontrols.AudioSettings for radio channels and pairing.SST RadioGeneral settings.SettingsInformation about the firmware version.AboutMicrophone DM9048

Function indicator2.The function indicator gives you information about the unitscurrent status.Table 3: Pairing indicationsIndicationStatus//......//Ready to receive pairinginformation// //Pairing information sent.// //Information receivedTable 4: Charging indicationsIndicationStatus//......//Charging in progress//......//Charging complete//... ...//...//... ...//...Low battery!Note: If the unit is on while charging the function indicatorstays red even when the battery is fully charged.49Microphone DM90

Table 5: Bluetooth indicationsIndicationStatus//... ...//Pairing mode active// //Pairing successful//......//...... ...Call in progress////Settings clearedMicrophone DM9050

Optional accessories3.The following accessories can be used with your product:Soft caseCharging standTable standNeckholder51Microphone DM90

Boom microphone, blackBoom microphone, beigeMicrophone DM9052

IV. Miscellaneous55Microphone DM90

Radio1.Comfort Digisystem relies on radio technology to transfer thesound between transmitters and receivers. Like all radiosystems, it communicates on specific channels. If you use twotransmitters on the same channel, or neighbouring ones, theremay be interference. Other electronic equipment can alsointerfere with radio transmissions.Channel planningTo achieve optimal radio performance you need to take intoaccount the distance between transmitters and their frequencies.A longer distance between transmitters allows you to usefrequencies that are closer together.If several transmitting frequencies are being used in the sameroom, the frequency differences between the units should be atleast 1 MHz for optimal operation.Radio rangeThe radio range between the units is around 30 metres. However,this may vary depending on the particular environment you arein.57Microphone DM90

Battery maintenance2.This product has a built in Lithium-Ion Polymer battery.Lithium-Ion batteries do not suffer from so called memory effectsand do not need to be routinely discharged to preserveperformance.The battery's capacity will degrade over time. This is normal forall rechargeable batteries. Battery lifetime is dependent onusage patterns. The battery is preferably charged little and often;it will reach 90% of its capacity after half its charging time. Ifstored for long periods of time, the battery is best leftsemi-charged. Contact your point of purchase when it is time tochange the battery.Operating times vary depending on which features are used.Features such as Bluetooth can be disabled to extend operatingtimes.59Microphone DM90

Troubleshooting3.Consult the following guide if you have problems with yourequipment. If you still have questions, please contact your pointof purchase.SolutionCauseSymptom•Charge the battery.•Press for at least 2sec.•The battery is depleted.• is released too soon.•The device does notstart.•Unmute themicrophone and/orreceiver.•Reduce the distance tothe speaker.•The microphone and/orreceiver is muted.•The distance betweenthe microphone andthe person speaking istoo long.•Poor speechintelligibility.•Reduce the distance tothe receiver. Maximumdistance is approx. 30metres.•The distance betweenthe microphone andthe receiver is too long.•Poor range and/orstatic interference.•Redo the pairingprocedure. See PairingComfort Digisystemdevices on page 31•The units are notpaired.•Loud hissing noise (nosound transfer).•Make sure that yourBluetooth devicesupports any of thenecessary profiles. SeeTechnicalSpecifications.•The Bluetooth devicedoes not support thenecessary profiles.•The Bluetooth devicewill not pair withMicrophone DM90.61Microphone DM90

SolutionCauseSymptom•Unmute themicrophone.•Redo the pairingprocedure. See PairingComfort Digisystemdevices on page 31•Rise the volume.•The microphone ismuted.•The transmitter andreceiver channel doesnot match.•The volume is turneddown.•No sound is heard.Microphone DM9062

Service and warrantyComfort Audio AB accords a limited warranty for two years asof the date of delivery. This covers all defects of manufactureand materials. For accessories the warranty period is 90 daysas of the date of delivery. Local agreements or regulations mayexist. Defects caused by careless handling or intervention insidethe product or its accessories are not covered by the warranty.If you are in a need of service on your device, please contact yourpoint of purchase. You are always welcome to contact ComfortAudio if you have any questions.63Microphone DM90

Contact informationHead officeSWEDENComfort Audio ABBox 154SE-301 05 HalmstadPhone +46 35 260 16 00info@comfortaudio.comwww.comfortaudio.comSubsidiariesNORWAYDENMARKComfort Audio ASComfort Audio ApSPostboks 304Benediktevej 5, 1.salNO-3201 SandefjordDK-3480 FredensborgPhone: +47 959 87 910Phone: +45 33 78 03 02info@comfortaudio.noinfo@comfortaudio.dkwww.comfortaudio.nowww.comfortaudio.dk65Microphone DM90

BENELUXGERMANYComfort Audio BVComfort Audio GmbHNieuwe Steen 20Curiestraβe 2NL-1625 HV HoornDE-70563 StuttgartPhone: +31 229-87 01 10Phone: +49 711 67 400 224info@comfortaudio.nlinfo@comfortaudio.dewww.comfortaudio.nlwww.comfortaudio.deUSAComfort Audio Inc.411 E. Business Center DriveSuite 109Mount Prospect, IL 60056, USAPhone: +1 888 421-0843usa@comfortaudio.comwww.comfortaudio.usMicrophone DM9066

Product symbolsThe product complies with theEuropean directive 93/42/EEC,including amendments,concerning medical devices.The product complies with theessential requirements of theEuropean Directive 1999/5/EC,including amendments,concerning Radio andTelecommunications terminalequipment.The product is covered by theEuropean directive2002/96/EC, includingamendments, concerningWaste Electrical andElectronic Equipment (WEEE).Recycle the product and itsaccessories according tonational regulations.Direct current.Restriction of usage related totransmitted frequencies mayapply, due to nationalregulations.Connector for battery charger.67Microphone DM90

Indoor use only.Class II equipment.Aux in.Microphone DM9068

Trademark and copyright noticesBluetooth® is a registered trademark of Bluetooth SIG, inc.Comfort Digisystem™ is a trademark of Comfort Audio AB.SecureStream Technology™ is a trademark of Comfort Audio AB.Comfort Audio™ is a trademark of Comfort Audio AB.69Microphone DM90

Comfort Audio ABBox 154SE-301 05 Halmstad, SwedenPhone: +46 35 260 16 00info@comfortaudio.comwww.comfortaudio.comMA0445130225© Comfort Audio AB. All rights reserved.All content is subject to change without notice.