Description   
Function: long press the button, turn on the speaker power, the blue light flashes, enter the pairing mode, the mobile phone Bluetooth function is turned on, find the J09 pairing to success, the blue light is always on.
Bluetooth playback: You can operate related functions on your phone.
The buttons on the speakers have a pause and play function.
Intercommunication function: Two-way voice call, the design is more user-friendly.
You can manually adjust the output volume by turning the body knob (clockwise increase, counterclockwise decrease); you can also adjust the volume directly on the device such as a mobile phone.

Specification: 
Color: pink,blue,white.
Material: ABS engineering plastic silicone
Built-in battery: 3.7V-4.2V 400mAh
Charging current: 5V0.8A(max) is about 1.5 hours full
Charging mode: Micro-USB interface 5V1A
Output power: ≤ 2W
Life time: more than 6 hours
Bluetooth version: 5.0
Transmission distance: >50m
Volume adjustment method: external potentiometer / mobile phone (both can adjust the volume simultaneously)
Frequency response range: 80Hz-20KHz
Speaker specifications: 4Ω3W
Applicable area: ≤10m2

Note: 
There may be a slight error due to different measurements. 
There might be a bit color distortions due to different computer resolutions.

Package included: 
1 * speaker.
1 * charging cable.
1 * manual.

size:72*55*68mm