SHENZHEN WEIKING TECHNOLOGY CO. LTD BT228 Manuel D’Utilisation

尺寸: 70x100mm,  材质：100g书纸，1C+1C，风琴折页

⊙ User manual x1

⊙ Type-C cable (For Charging) x1

⊙ 3.5mm AUX cable x1

User Manual

1. Turn on two devices, Blue LED flash.

2. Select one of the devices and double press the Power button, and then they will pair each other. 

(The main device:Blue and Green LED Alternately flash )

3. After successfully pairing, Main device blue LED slow flash, auxiliary device blue LED long light.

4. In your phone, search BT228 and connect, after successfully connecting, the two devices can play 

music together.

5. Disconnect TWS, press + - buttons together, the Blue LED fast flash (every 2 seconds) means it 

has been disconnected.

Sound effect

MIC

State indicator light

Power

Volume-

Volume+

Play/ Pause

Strap

TYPE-C charging

AUX/ Reset

USB

Battery indicator light

⊙ Bluetooth version: BT4.2

⊙ speaker unit：Diameter 70 mm outside mangnet ,4ohm, 20W*2
                                     Diameter 30 mm inner mangnet ,8ohm, 10W*2
⊙ SNR:  ≥75DB
⊙ Working time: 6-8 hours
⊙ Charging voltage/current : TYPE C DC/2000MA
⊙ Support USB Flash Drive, Music format: MP3,WAV,WMA,APE,FLAG
⊙ Transmission: 10M (Vary from environment and devices)
⊙ Battery voltage :7.4V
⊙ Battery : 2500mAh
⊙ Charging time: 4-6hours

⊙ THD: ≤10%
⊙ Product size: 319.5*118*119.5mm  

Short press "     " when incoming call

（Under TWS, only the Main device have voice）

Long press "     " when incoming call

（Under TWS, only the Main device have voice

Short press "     " when you are on call

（Under TWS, only the Main device have voice）

Insert AUX to AXU Mode

Short press "     " 

Blue LED flash (every 2 seconds)

Blue LED long light

Indoor:Green LED long light/Outdoor: 

Green LED slow Flash (every 1 second)

Will connect automatically with the 

last connected device

Indoor:Blue LED long light/Outdoor: 

Green LED slow Flash (every 1 second)

Long press  "     " 

（Under TWS, only the Main device can talk）

/

/

/

Long press "     "  for 2-3 seconds 

under Power off situation

Long press "     "  for 2-3 seconds 

under Power on situation

Auto to Enter Pairing Mode

Blue LED On

LED Off

Blue LED Flash(every 2 seconds)

Indoor: Blue LED long light/Outdoor: 

Green LED slow flash

Press "+""-" together

Select Bluetooth Name on your Phone

/

Insert USB to USB mode

Indoor:Green LED long light/Outdoor: 

Green LED slow Flash (every 1 second)

Double press "     " 

Blue and Green LED Alternately flash

Main device blue LED slow flash, 

auxiliary device blue LED long light

/

Press + - together

Blue LED fast flash

Short press +
Short press -
Long press +

Long press -

Short Press "     " （Mute in AXU mode）

Battery Voltage lower than 6.5V
Battery Voltage lower than 6.2V

Insert 5V USB

/
/
/
/

/

Red LED Long Light

Red LED Off

/
/

Use the toothpick or other insulator 

insert AUX hole

LED off

Note: The volume and mode have memory function. When Power on, the speaker will continue the 

volume and mode of the last Power off. And every time the sound effect is indoor effect. 

Auto completed 

Indoor: State indicator light long light

Outdoor: State indicator light flash

Short press "      " Sound effect button  

Left

Right

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 
Changes or modifications not expressly approved by the party responsible for compliance 
could void the user's authority to operate the equipment. 
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.

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 different from that to which the 

receiver is connected. 

-Consult the dealer or an experienced radio/TV technician for help 

Changes or modifications not expressly approved by the party responsible for compliance 

could void the user's authority to operate the equipment. 

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.