Output voltage:3.7V-4.2V
Input:5.0V
Frequency Response:20HZ-20KHZ
Battery:300mA
output power:35MM, 3W
Transmission distance >10M
Product Size: 4.5*4.5*5cm
Enqlish FM radio function
AUX in function,play music from MP3,PC,Mobile,ect;
TF card music playback;