sell mini portable wireless bluetooth speaker

Description

Support Bluetooth V3.0
BT Handfree for calls; echo processing
Transmission range: *0M
Built-in Li-ion Battery: 3.7V / **0MAH
Stereo sound output, Built-in bass diaphragm, perfect Bass effect
3.5mm Line in. Connect to MP3/PC/Other Audio. 
Bluetooth Profile:  high quality audio processing A2DP V1.2;
Support TF card function.
Applicable for iPhone, iPod, mobile phone, computer, etc.
Output voltage: 3.7V*4.2V
output power: 3.0W      Input: 5.0V
Loud speaker:  4 OHM / 3W
Signal and noise ratio(SNR): MORE THAN *5db
Frequency Response: *****0KHZ
Output distortion rate  LESS THAN 0.5%
Battery: rechargeable built-in high capacity lithium battery