Betrue Technology BTS37 Bluetooth Speaker User Manual
Shenzhen BETRUE Technology Co., Ltd. Bluetooth Speaker
User manual

BTS-37 BK8000L_AUX_20150306 V1.0_r0
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User’s Manual
Model: BTS-37
Bluetooth Stereo Speaker
With
AUX Input

BTS-37 BK8000L_AUX_20150306 V1.0_r0
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A.
Warning
Don’ts
• Do not place naked flames, such as lighted candles on or near the
product.
• Do not place objects filled with liquids, such as vases on or near the
product.
• Do not use or store this product in a place where it is subject to direct
sunlight, heat, excessive dust or vibration.
• Do not keep or store this product in wet conditions for long period.
• Do not clean this product with water or other liquids.
• Do not block or cover the slots and holes in the product.
• Do not push foreign objects into the slots or holes in the product.
• Do not attempt to open this product yourself. There are no user
serviceable parts inside.
• Do not allow children access to plastic bags.
Safety Instructions
Before using this product, read and follow all warnings and instructions.
• This product is not intended for use by young children. Young children
should be properly supervised.
• This product is intended for household use only and not for
commercial or industrial use.
• Do not expose to dripping or splashing.
• No naked flame sources, such as lighted candles, should be placed on
the product.
• Ventilation should not be impeded by covering ventilation openings
with items such as newspapers, table cloths, curtains and the like.
• Make sure the unit is adjusted to a stable position. Damage caused by
using this product in an unstable position or by failure to follow any
other warning or precaution contained within this user manual will
not be covered by warranty.
Warning
• Never remove the casing of this apparatus.
•
Never place this apparatus on the other electrical equipment.
Notice
• If at any time in the future you should need to dispose of this product
please note that: All batteries and accumulators need to be removed
from this product (Removal of Waste Batteries and Accumulators).
• Always bring your product to a professional to remove the built-in
battery.
BTS-37 BK8000L_AUX_20150306 V1.0_r0
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FCC Warning Statement
Changes or modifications not expressly approved by the party responsible
for compliance could void the user’s authority to operate the equipment.
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 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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B.
Outlook and Controls
No.
Control
No.
Control
1
Rubber Seal Cover
9
MIC
Hole
(For Hand
-
Free)
2
Power Switch
(
ON
/
OFF
)
10
Bluetooth LED Indicator
(Blue)
3
Micro USB socket
(DC
Input)
11
AUX IN
LED Indicator
(Red)
4
AUX IN
(3.5mm Stereo)
12
Charge LED Indicator
(Red)
5
Lanyard Hole
13
L
eft
Speaker
6
Button
14
R
ight
Speak
er
7
/
Button
15
Bass Radiator
8
Button
2 3 4
5
1
8 7 6
9
13
14
15
10
11
12

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C.
About the rechargeable Battery &
Charging
This Bluetooth Speaker has an internal, non–user-replaceable battery.
For best results, the first time you use this Bluetooth Speaker, let it charge
for about 3 ~ 4 hours or until the “Charge LED (12)” light to off from On
which show you the battery is fully charged.
For maintain the battery life and performance, if speaker isn’t used for
a while, the battery might need to be recharged. Charge the battery at
least once every month.
To recharge the built-in battery:
Connect the Bluetooth Speaker’s “Micro USB socket (3)” with the
Computer’s USB port through USB cable.
The “Charge LED (12)” light will turn On in red, the battery is in
charging.
The “Charge LED (12)” light will turn Off when the rechargeable
battery is fully charged.
Disconnect the USB cable when it is done.
D.
Power ON and
Pairing
1. Slide the “Power Switch (2)” button to ON position to turn On the
device, a series of tones will sound and the “Bluetooth LED (10)” will
light and then fast blinking blue in seconds.
2. Then activate the Bluetooth function in your mobile device (such as
Mobile Phone or Personal Computer), the device will enter to
Bluetooth searching mode automatically, if not, tap the relate
selection to manually enter to searching mode. (refer to your device’s
manual when necessary)
3. Your mobile device should show “BTS37” in list, and then select it for
pairing. Waiting for some seconds and you will see connected
message as shown on your mobile device. (For some Bluetooth
devices, you may need to input “0000” as pairing password)
4. If pairing is successful, a series of tones will sound and the “Bluetooth
LED (10)” light will switch to slow blinking from fast.
5. Now, you can start to music play from the mobile device by it music
player program.
6. Slide the “Power Switch (2)” button to OFF position to turn Off the
device when it is not in use.
Note: for saving battery energy, the Bluetooth Speaker will turn to sleep
mode when no device is in paired in 8 minutes. To restart the device, slide
the“Power Switch (2)” button to OFF and then to ON position.
E.
Disconnect from paired device
1. To disconnect with paired device, for better result turn Off the
Bluetooth Speaker directly.

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2. Or, you can choose “Disconnect” from Bluetooth paired device list on
your mobile device.
3. In this case; the Bluetooth Speaker will turn back into “Searching /
Pairing” mode in seconds, a series of tones will sound and the
“Bluetooth LED (10)” light will turn back to fast blinking from slow in
blue.
4. Now, you can process for new mobile device pair or power Off the
Bluetooth Speaker as you wanted.
F.
Auto r
e
-
connect
with paired device
and New pairing
1. Every time you turn On the Bluetooth speaker power; it will firstly
searching for the mobile device, which has been paired previously
and still in record. The Bluetooth Speaker will re-connect this mobile
device as priority if it is in Bluetooth searching device mode.
2. If not found in some seconds, the Bluetooth Speaker then is turn into
new pairing mode internally.
3. Now you can process for new mobile device pair. (refer to item
E.2~E.5 methods)
G.
Switch to new pairing
from connec
ted
mode
1. In Bluetooth connected mode, you can switch the Bluetooth Speaker
into Bluetooth searching mode for paring with the new device at any
time you desired;
2. Press and hold the “ / (7)” button until a series of tones sound
and the “Bluetooth LED (12)” will turn back to fast blinking light.
3. Now you can process for new mobile device pair. (refer to item
E.2~E.5 methods)
H.
Bluetoot
h
Music
Playing
Control F
unction
1. In playing music, press “ / (7)” button to pause the music. To
resume the music press it again.
2. Press and hold the “ (8)” button to increases the volume level.
3. Press and hold the “ (6)” button to decreases the volume level.
4. When maximum or minimum volume is reached, a series of tones will
sound.
5. Press once the “ (8)” button to go to next music.
6. Press once the “ (6)” button to go to previous music.
I.
Hand Free F
unction
1. When there is an incoming call during Bluetooth music playing mode;
2. The ringing sound will up and the playing music will pause
automatically.
3. Press “ / (7)” button to pick up the call if you want.

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4. Now you have hand free function with the Bluetooth speaker.
5. Press “ / (7)” button again to hang up the call when finished. And,
6. The paused music will start to play automatically.
7. Press and hold “ / (7)” button for 3 seconds to ignore the
incoming call.
Tip: speak to the “MIC (9)” hole direct with distance in 30 ~ 60cm to get
the best speakerphone performance when necessary.
J.
Redial F
or Last Call
F
unction
1. To redial for last called number by the Bluetooth Speaker, even it is in
music playing mode.
2. Press twice the “ / (7)” button to enter into redial function, the
playing will pause and switch to hand free function for redial.
3. Press the “ / (7)” button again to hang up the redial call.
4. Make sure that your mobile phone has have last dial call used, if not,
the redial for last call function cannot be activated.
K.
AUX IN Function
1. In power ON mode, connect the Bluetooth Speaker’s “AUX IN Jack
(4)” with an external device’s “Earphone / AUX / LINE” Output
through the Audio cable (Supplied).
2. The Bluetooth Speaker will switch to “AUX In” mode automatically
from Bluetooth mode, and the “AUX IN LED (11)” indicator will light
up and the “Bluetooth LED (10)” indicator will light off.
3. Now the “AUX In” Function is ready, start to music play from your
external device by it control and or program, for example, Play, Stop,
volume control…etc.
4. You also can use Bluetooth Speaker control;
5. Press and hold the “ (8)” button to increases the volume level.
6. Press and hold the “ (6)” button to decreases the volume level.
7. When maximum or minimum volume is reached, a series of tones will
sound.
8. Disconnect the Audio cable when it is done.
L.
Lo
w Power Reminder And Auto S
leep
1. The Bluetooth Speaker will send tones sound from speaker by every
some minute. When you heard this reminder, please connect the
device to the USB power for charging, if you still want to use the
device.
2. If not, the Bluetooth Speaker will power Off automatically when the
battery is keeping low energy level in some minutes.
3. In this case, the device cannot be turned On, until you recharging the
battery at least 10 ~ 15 minutes, because the rechargeable battery

BTS-37 BK8000L_AUX_20150306 V1.0_r0
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has not enough energy.
4. Slide the “Power Switch (2)” button to OFF and then to ON for restart
the device.
M.
Reset the device
1. In some circumstances the device’s function may hanging and need to
reset. To reset the Bluetooth speaker;
2. To power reset the device, slide the“Power Switch (2)” button to
OFF and then to ON position.
N.
Trouble Shooting
No power
•
Check battery is it charged with enough energy.
•
Check whether the device is in power OFF mode.
No sound
•
Check whether volume level is in lower position on
your speaker and mobile phone or PC/Mac.
• Make sure that your Bluetooth device is within the
effective operation range.
• Check whether the Bluetooth device is paired.
• Check whether the Bluetooth device show
connected.
• Check if you have selected the correct audio
source.
No re
sponse from
speaker
•
Restart the speaker by power Off and On.
O.
Specification
Dimension
167
mm
(
L
) x
34
mm
(
W
) x
59
mm (
H
)
Weight
246.5
g (Approximate)
Bluetooth
Specification
V2.1 + EDR
Supported Profile
A2DP, AVRCP, HSP
Connection Distance
In 10 me
ters (open area)
Built-In Battery
Lithium 3.7V,
1500
mAh
Playing Time: 4
~
6
Hours (at
75 ~ 80
% of
volume setting)
Power Source Input
Mi
cro
USB Port
PC’s USB port Power or DC 5V, 500mA
Audio
Output Power
2
W
x 2
(at
4
Ohm
)
Frequency
Responses
20
Hz
to
20
,000Hz
I/O
Audio
in
link
600~800mV RMS,
10K Ohm
Operating Temperature
0 to 40
℃

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P.
Disclaimer
Updates to Firmware and/or hardware components are made
regularly. Therefore some of the instruction, specifications and pictures in
this documentation may differ slightly from your particular situation. All
items described in this guide for illustration purposes only and may not
apply to particular situation. No legal right or entitlements may be
obtained from the description made in this manual.
Q.
Recyclin
g
This symbol indicates that the relevant electrical
product or battery should not be disposed of as general
household waste in Europe. To ensure the correct waste
treatment of the product and battery, please dispose
them in accordance to any applicable local laws of
requirement for disposal of electrical equipment or
batteries. In so doing, you will help to conserve natural
resources and improve standards of environmental
protection in treatment and disposal of electrical waste
(Waste Electrical and Electronic Equipment Directive).