●MP3 Player: high quality 3D Stereo MP3 watch ●Support Music Format: MP3, WMA, ASF ●Built-in Voice Recorder: for recording meeting ,study ,business, getting proof, high quality recording ●Built-in microphone ●Flash USB Drive: carry computer document and media files anywhere ●A-B Repeat Playing:good for learning foreign language or singing ●Long-life battery 8.Play recordings right away on the watch ●Sound effects: Normal/Rock/Pop/Classic/Metal ●Power save function: Charging 1.5-2 hours ,continue to play 6-8 hours ●Built-in Li battery,recharge with AC adapter from wall power outlet or computer USB port ●USB 2.0 (High speed transmission) ●No driver needed for Windows XP. Drivers available for windows 98. Mac/Linux compitable ●Large capacity: 128MB - 4GB