SD card music Player  headset
Features:
◆ As MP3 Micro SD card headphone  
◆ As FM radio                 
◆ As Multimedia computer headphone

Specifications:
Support file format:MP3     
Communication protocols:USB2.0
Frequency response:20-20KHz    
SNR:About 75db (1KHz)               
FM frequency range:87.5MHz-108MHz                               
Extermal power supply: USB5V/350mA                            
Recharge time: 3 hours             
Battery life(full): approx 8 hours