Sports MP3  OA-0177

Portable back-hang design
Convenient for sport
Voltage: 3.7V
USB power
150mAH rechargeable Li-on battery. Playing time 3 hours.USB 2.0
Support: MP3, WMA
Memory up to 4GB
Key-press: volume+/- , Play/Pause/Previous/Next
16 Level volume control
Speaker power: 2 x 10mW
Product Certifications:CE,FCC,ROHS,SISVEL,MSDS,SASO,FORMA.