This wireless earphone is designed for sport. You can use it play music. It also can be used to listen radio.It is light,easily to take during do sports.Looks fashion.
Audio Formats: Mp3.
Five buttons:Power on/off,foward,backward,pause,and mode.
Power by USB cable.
Output frequency: 20hz-20khz.
Built-in rechargeable li-on battery.
Compatible system:Windows 98/2000/XP/Vista/7
Weight: Approx 40g
Three colors for option:Black,Blue or Green
Sport MP3 x 1
USB cable x 1