DNS 25488 Mono Earbuds User Manual

SHENZHEN DNS INDUSTRIES CO., LTD. Mono Earbuds

User Manual

1 / 9 User Manual Welcome Thank you for choosing us. Our bluetooth headset has a fashionable design, powerful functions, and high compatibility, providing you with true hands-free convenience when making calls and listening to music! It is your best choice in office and during traveling and driving! Quick Start Location of controls: Ear hook Receiver Volume up Volume down MFB (Multi Function Button) LED Indicator Micro USB charging port Microphone
2 / 9 Fully charge the headset before using. For charging details, please refer to "Charger and Battery" in this manual. Meanwhile, choose the compatible cell phone or other bluetooth devices for pairing. For details about pairing, please refer to "Basic Operations". Tips: Keep the headset away from your credit card or other magnetic storage media; otherwise, the stored information may be lost due to demagnetization. Product features and functions: Supports multi-point function, available to connect two cell phones simultaneously Support to call and super noise-reduction Support to show battery status of IOS system. Support to play music, with next and previous songs controlling Support to voice prompt tone How to connect with the bluetooth headset (Note: Use iPhone for example) 1.Under power off status, hold down MFB for about 4 seconds until red and blue indicators blink alternatively, to enter into paring mode. 2.Open the bluetooth software of your phone, searching the headset. 3.Find the bluetooth headset, pairing it to finish the connected.
3 / 9 Basic Operations
4 / 9 Power On: Hold down MFB for about 3 seconds to power on. Red and blue indicators blink synchronously 3 times, and the voice "Power On" is heard. Pairing: Hold down MFB for about 4 seconds until red and blue indicators blink alternatively, and a voice "Pairing" is heard. The pairing lasts for 150 seconds. If pairing fails, the headset enters into the status of standby without connection, and a voice "Pairing Not Completed " is heard. If your mobile phone version is earlier than version 2.1, you need to enter the paring code “0000”. Standby without Connection: The blue indicator blinks once every 5 seconds and the headset automatically powers off after 6 minutes. Connection: After the headset is paired with a mobile phone, a voice "Pairing Completed" is heard. After the successful connection, a voice "Connected" is heard. Connected: The blue indicator blinks once every 5 seconds. Listening to Music: The purple indicator blinks once every 5 seconds. Incoming Call: The blue indicator rapidly blinks 3 times every 5 seconds. On a Call: The purple indicator blinks 3 times every 3 seconds. Abnormal Disconnection Due to Long Distance: A voice "Disconnected" is heard, and the blue indicator rapidly blinks. Reconnection: After power on, the headset will auto reconnect the previous connected cell phone once. Voice Control: At the connection status, double-click MFB with a beep. Repeat this action to cancel voice control. Re-dial the last called number: At the connection status, hold down MFB for 1 second to re-dial the last called phone number. Repeat this action to cancel the re-dialing. Call answer: When a call is incoming, click MFB with a beep to answer the call.
5 / 9 Reject incoming calls: When a call is coming, hold down MFB for 1 second with a beep to reject the incoming call. Hang up calls: During call communication, click MFB button with a beep to hang up the call. Volume Control: At standby or call communication status, click Volume+ each time, the volume will be increased for one level. You will hear a beep when the volume is increased to maximum. Click Volume- each time, the volume will be reduced for one level. You will hear a beep when the volume is reduced to minimum. Audio line switch of call: During call communication, double click MFB button to switch the audio line to cell phone. Repeat this action to switch back to headset. Muting the Conversation: When you are on a call, hold down Volume – to mute the conversation, and hold down Volume + to restore conversation. Pause/Play Control: When you are listening to music, press MFB once to pause the music. Repeat the step to play the music. Previous/Next Song Control: When you are listening to music, hold down Volume + for 1 second to select the next song. Hold down Volume – for 1 second to select the previous song. Three-party calling: 1) When a new call is incoming during call communication, click MFB button to end the current call and answer the new call. 2) Hold down MFB about 1 second to keep the current call. Repeat this action to keep the current call and switch back to current call. Multi-point Operation: 1) When the headset is powered off, hold down MFB to power on. Release the button until red and blue indicators blink alternatively, and then the headset will enter into paring mode. 2) Connect the bluetooth headset with cell phone A, and then close the bluetooth headset after successful connection. 3) Open the headset again to
6 / 9 enter into paring mode, and then connect the bluetooth headset with cell phone B. Close the Bluetooth headset again after successful connection. 3) Open the bluetooth headset, and release the button until blue indicator blinks for 3 times. Now the headset will automatically reconnect with cell phones A and B without entering into pairing mode. Then you can use the bluetooth headset to answer calls when there is an incoming call from either cell phones A or B. Restore Factory Settings: When the headset is powered off, hold down MFB for 10 seconds until red and blue indicators turn off to restore factory settings. Power Off: At any status, hold down MFB for about 3 seconds until red and blue indicators blink 3 times. Charging Without Resetting: Connect the headset to the charger at any status, the headset can be charged without resetting. Charging: The receiver will remind you about low battery. Connect the headset to a charger when red indicator blinks. The charging voltage shall between 4.75V and 5.5 V. During charging, the red indicator is steady on. It will change to a steady blue indicator after charging finished. Charger and Battery Before using any charger to charge this headset, check whether the specifications of the charger meet requirements. The recommended output voltage of the charger is DC5V+/-0.25V, and the recommended output current is 100 mA to 500 mA. An over-high charging voltage may damage the headset. Charging the Battery The headset is embedded with non-removable charging battery. Do not attempt to remove the battery from the headset;
7 / 9 otherwise, the headset may be damaged. If the headset is not used in a long time, keep it in a dry and well-ventilated place, and charge the headset once every two months. 1. If the red indicator blinks with low-voltage beep, the headset battery is low. If the headset continues to work, it may be automatically powered off. At this time, you need to charge the headset by connecting the cable of the charger to the charging port on the headset. 2. Connect the charger to an AC power socket. 3. The red indicator is on when the headset is being charged. If the charging is not started yet, disconnect the headset from the power socket, and reconnect the headset again. It takes about 2 hours to fully charge the headset. After battery charging is completed, the red indicator is off, and the blue indicator is on. At this time, you can disconnect the charger from the power socket and headset. Troubleshooting Problem Description Cause Solution Power on function is failed. The battery is exhausted. Use the charger to fully charge the battery. Time of holding down MFB button is too short. Press the MFB button again.
8 / 9 Charging function is failed. The charging port is not properly connected. Reconnect the charging port. Power off function is failed. The headset program is in error due to an incorrect operation. Use the charger to charge and reset the headset. The headset cannot be searched or pairing fails. The headset does not enter into the pairing state. Enable the headset to enter into the pairing state. The bluetooth application of the cell phone is in error. Close the cell phone and start again to pair the cell phone with the headset. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Warning: Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a
9 / 9 residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help.

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