GSOU Technology Co. LTD BT910 User Manual

Thanks for purchasing Gsou U910 portable stereo 
Bluetooth® speaker. Please take the time to follow the 
instructions in this User manual carefully. If you have any 
query, please call our national service hotline: 
400-0985-400

1. To reduce the risk of fire or electric shock, be sure the 
electrical circuits are not overloaded.
2. To reduce the risk of electronic shock, be sure not plug 
the with wet hands.
3. Unplug the power cable if your device is smoking or 
abnormal and seek professional help from your nearest 
service center, be sure not detach the device yourself.
4. To reduce the risk of fire or electric shock, do not expose 
this product to rain or moisture. Liquids can cause a failure 
and/or a fire hazard.
5. The power cable and audio cable can not be twisted or 
dragged in case of short circuit.
6. Do not place any naked flame sources, such as lighted 
candles, on or near the apparatus.

Problem
Speaker will not turn 
on
Paired
Bluetooth device will 
not connect

Speaker indicates a 
connection, but it not 
playing music

Can not pair the Gsou 
U910 with my 
Bluetooth device 

No audio from a 
Bluetooth device

Solution
●Make sure your speaker battery has sufficient 
power.
●If your device requires a pass code, make sure to 
input “0000”four zero.
●Turn the Gsou U910 speaker off and back on
●Remove the Gsou U910 speaker from the pairing 
list on your Bluetooth device pairing list (consult 
the device owner’s manual for assistance).Then pair 
the device and the speaker again.
●Turn off or disable Bluetooth on all other paired 
devices nearby and reconnect the device you want 
to listen
●Turn the Gsou U910 speaker off and back on
●Make sure your speaker is discoverable
●Your Bluetooth device maybe out of range-try to 
move closer to your speaker
●Make sure your Bluetooth device supports the 
transfer of audio 
●Reset your Bluetooth speaker
●Make sure your Gsou U910 is not muted and the 
volume is up.
●Make sure your Bluetooth device is playing 
audio and volume is up
●Your Bluetooth device may be out of range, 

Poor sound quality 
from a Bluetooth 
device

No Audio from AUX 
source

Poor sound quality 
from AUX source

move closer and try
●Turn your Bluetooth speaker off and back on
●Your Bluetooth device may be out of range, 
move closer and try again
●Move your Bluetooth device and /or Gsou u 
speaker from any device that generates 
electromagnetic interference, such as another 
Bluetooth device, cordless phone, microwave oven 
or wireless router.
●Try to turning off WIFI to improve audio quality
●Make sure your music file is not poor quality.
●Turn your Bluetooth speaker off and back on.
●Make sure your connected device is on and 
playing
●Make sure you speaker is in AUX in mode
●Make sure the audio cable is correctly inserted 
●Increase the volume level on the device and 
speaker
●Reduce the volume level on the AUX source
●Make sure the 3.5mm audio cable is fully 
inserted into the speaker and device.
●Make sure your audio source and music file is 
not of poor quality

⑤ Volume down. In Bluetooth® mode and Aux in mode, 
long press is for decreasing volume.
⑥ Volume up. In Bluetooth® mode and Aux in mode, long 
press is for increasing volume, 
⑦ Bluetooth® disconnect button and Answer/Reject call./ 
Play/Pause button .In Bluetooth® mode, press and hold for 
3 seconds to disconnect Bluetooth®. In Bluetooth® mode, if 
there is incoming calls, short press for 1 second to answer 
the call, and long press for 3 seconds for rejecting call. 
Play/Pause button. When you are playing music, short press 
is for Pause and resumes play. 
⑧ LED indicator. 
⑨ NFC area   Tap here to power on/pairing your Bluetooth 
speaker.
⑩ Enhanced mode：Press the volume up and volume 
down button simultaneously to enter into enhanced mode 
while playing music. Press the two buttons simultaneously 
to resume default mode. 

1. How to connect your U910 with Bluetooth-enabled 
playback devices?
① Be sure your speaker battery has sufficient power.

② Turn on your speaker and it will be in Bluetooth mode automatically 

and ready for connecting. The blue indicator flashes.. .

③ Open the Bluetooth® of your mobile, search the “Gsou U910” device and 

connect to it. Usually you needn’t to input password for most of Bluetooth 

playback devices, but due to the Bluetooth version varies, sometimes, you 

need to input the default password “0000”(four zero) if required.

④ Blue light remains steadily on to indicate successfully connected.

⑤ Run the music player of your mobile, and enjoy the loud but clear 

sound from your U910.
2

. How to connect the U910 with your notebook pc by 

Bluetooth®?
(1) In the case of your notebook with the Bluetooth® function.

① Start your notebook, search the Bluetooth® device by 

“Start—Setting—Control Panel”.

② Start the Bluetooth® searching function of your notebook, blue light 

flashes when searching the Audio-in devices.

③ Blue indicator light remains steadily on after connecting successfully.

④ You can play the audio music of the notebook by the speaker.

(2) In the case of your notebook without Bluetooth® function.

Please buy the Bluetooth® adaptor additionally. We suggest the adaptor 

with Bluetooth 4.0 version for high quality audio experience. After 

installing please start the Bluetooth® from the “Control Panel” or the 

shortcut of your pc desktop, please search for connecting, and the 

instruction steps are the same as the first case.

3

. Answer/reject incoming call

① Short press the play/pause button to answer the call, and short press 

the button again to hang off after answering.

② press and hold the button 3 seconds to reject call.
4

. How to play music by AUX-in?

Your U910 comes with a standard 3.5mm Aux in jack for connecting with 

other non-Bluetooth audio devices,eg mobile phones,mp3/mp4 

players.pc. tablet pc and etc.

① Plug one end of the audio cable to the AUX in jack of the speaker and 

the other end connect to audio source AUX jack.The green indicator will 

remains steadily on.

② Your speaker will disconnect the Bluetooth®, switches to the external 

source play, as the external source of AUX-in mode is prior.
5. Enhanced mode
Enhanced mode is designed for a premium level of sound intensity and 

bass.

① make sure you speaker is working properly.

② Press the volume up and volume down button simultaneously to enter 

into enhanced mode. 

The Blue indicator flashes to indicate successful operation.  

③ Press the two buttons simultaneously to resume default mode.
6. NFC power on/pairing.
① Make sure your mobile phone has NFC function.

② Start your NFC from settings of your phone.

③ Tap your mobile phone to NFC area of the speaker. Your speaker will 

power on automatically. The indicator will flash.

④ Five seconds later, tap your mobile to NFC area again to activate NFC 

pairing. Choose yes when your speaker mobile showed: Pairing with 

Bluetooth”? 

⑤ Your mobile phone will indicates “Paired with Gsou U910” Now you can 

enjoy wireless music.

⑥ Tap your mobile phone to NFC area again to disconnect Bluetooth.
7. Pair your speaker with two playback devices
Your Bluetooth speaker support to pair two playback devices at the same 

time. 

① Follow step one to pair your Bluetooth-enabled playback device 1 to 

your speaker.

② Press and hold the play/pause button for two seconds to disconnect 

the Bluetooth connection. then the speaker will memorize the mac 

address of the playback device 1.

③ Follow step one to pair your Bluetooth-enabled playback device 2 to 

your speaker.

④ Then pair your Bluetooth-enabled device 1 again. Now you can play 

music by two playback devices 

Please note the other playback device can not play audio when one 

playback device is playing. You need to pause one player if you want to 

play music by other device.

Note：
1

. Your speaker will power off automatically within 15 minutes if you did 

not pair it with playback devices in order to save energy. You need to 

power on speaker again when use..

2

. Bluetooth® compatibility note: U910 can be compatible with most of 

Bluetooth® devices with the different brands and models, but some 

individual Bluetooth® devices may have compatibility problem with the 

U910. If you need further assistance, please contact our technical customer 

service: 0086-755-83222871.

3. If your speaker paired with over 8 playback devices already. There will be 

2 or more seconds delay for scanning and pair with new playback devices. 

Because your speaker need to scan the previous paired devices firstly to 

re-pair with them automatically. Simply to hold the previous track and next 

track button at the same time for 3 seconds to clean all the memory 

devices and resume default settings.

① Power on/off;
② Micro USB port is for connecting to DC 5V USB cable, to 
charge the U910 Bluetooth® speaker. Please take note that 
power adaptor is not standard accessory of Gsou Bluetooth 
speaker. You can use your mobile phone adaptor to charge 
the speaker or connect to USB port of your PC /power bank 
to charge the device. The limited voltage is 5V.
③ Hand strap for easier portability.  
④ AUX-in jack. Connect the U910 with your pc, MP3/mp4 
player, Tablet, Mobile and other playback devices with 
3.5mm jack by audio cable and U910 will disconnect the 
Bluetooth® automatically.

Indicator Color
Blue indicator flashes
Green indicator remains 
steadlily on
Blue indicator remains 
steadlily on
Low power indicator 
flashes
Red charging indicator 
light

U910 working status
Status of waiting for connecting
Connected to aux in devices.

Connected to Bluetooth® source 

Battery voltage lower than 3.3v, Red light flashes 
means your speaker need to be charged
Red indicator is on when charging, and off when 
fully charged.

Product specification
Channel
Amplifier
Driver 
Size
Weight

2.0 Channel stereo
Digital Amplifier
Full range 40mm 4Ω× 5W×2
L151 x W65x H66mm    
480g

Technical Parameters
Bluetooth® chipset
Bluetooth® version
Supported protocol and profile
Battery 
Charging voltage limitation
AAC

（Advanced Audio Coding）

Playback time
Frequency response
Working temperature
AUX in jack
Level of Protection

CSR
V4.0
A2DP

、AVRCP、HFE、HFP

1400mAh PLB 
5V
Supported
About 6 hours
90Hz-20KHz
0

℃～45℃

3.5mm 
IP54

The Gsou trademark and logo are registered trademarks of 
Gsou Technology (Shenzhen)Co.,Ltd. All Rights Reserved. All 
other trademarks, logos or service marks are the property of 
their respective owners.

Gsou Technology (Shenzhen)Co.,Ltd
Add:14c, Block A, First World plaza, No.7002 West Hongli 
Road, Futian District, Shenzhen, China.
Tel: 0086-755-8326 6570    
Fax:0086-755-8325 5400
E-mail: sales@gsou.cn     
Website: www.gsoutech.com

Your Gsou U910 Bluetooth® speaker is covered by a limited 
warranty. It is backed by 1 year performance warranty 
against any manufacturing defects in material or 
workmanship from the date of original purchase. This 
warranty entitles the purchaser to get the product repaired 
or replaced under the following conditions:
◆ The warranty applies to the original purchaser, Proof of 
original purchase is required
◆ The warranty does not cover the damage caused by 
misuse, abuse or improper storage.
◆ In no event shall Gsou be responsible for any direct, 
incidental, consequential or other damages of any kind.

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.Changes or 
modifications 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 

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 
differentfrom that to which the receiver is connected.
-- Consult the dealer or an experienced radio/TV technician 
for help.
FCC RF warning statement: The device has been evaluated to 
meet general RF exposure requirement. The device can be 
used in portable exposure condition without restriction.

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Gsou U910 

Bluetooth® speaker

3.5mm 

Audio cable

Micro USB 

charging cable

User Manual