USB/TF/FM/AUX portable bluetooth speakers

Blutooth Version V5.0+EDR;
Transmission distance >10M;
Function: BT/call/USB/TF/FM/AUX
The bluetooth version can be paired with any bluetooth devices;
Hand free phone, you can answer / hang off cell phone;
USB/TF card music play back;
AUX in function,play music from MP3,PC,Mobile,ect;
FM radio model;

Output voltage:3.7V-4.2V

output power:3W*2

Input:5.0V

Loud speaker: 4Ω /3W*2/40 MM

Signal and noise ratio(SNR):80db

Frequency Response:20HZ-20KHZ

Output distortion rate≤0.5%

Battery: 1200mAh

material: ABS plastic

Color:black/red/blue/