Special Features: Sports Armband Design Unique EQ Button Design 1.1" 65K full color OLED display Main Features: Voice Record Built in FM Stereo Tuner(Optional) FM Record (Option) Built in Lithium Polymer Battery USB Battery Charge Support USBv2.0 Full Speed MP3/WMA/WAV Format Support SMV Video Playback Support JPEG Viewer Function GUI (Graphic User Interface) Menu Support A-B Repeat Power Saving Support Easy upgrade with firmware download from USB