Feature:1. Dual-channel, it delivering rich and crisp sound quality.2. Maximum support 8GB memory, allows you to listen to massive music.3. Support FM function, you can listen to your favorite pop music, foreign language songs, social or finance news and so on.4. Power-saving, it offers 6 hours of music playing time.5. Light weight, easy to carry.6. This wireless head-wearing music player is perfectly suitable for sports With the FM function, you can listen to your favorite pop music, foreign language songs, social or finance new and so on. And, its light weight design makes it comfortable to wear.7. Maximum support 8GB memory, allows you to listen to massive music.8. Support FM function, you can listen to your favorite music, foreign language songs, social or finance news and so on.9. Power-saving, it offers 6 hours of music playing time.10. Light weight, easy to carry. You can thoroughly get rid of the cable bound when exercising, Cycle, running, etc.Specification:This wireless head-wearing music player is perfectly suitable for sports. You can thoroughly get rid of the cable bound when exercising, Cycle, running, etc. With the FM function, you can listen to your favorite popular music, foreign language songs, social or finance new and so on. And, its light weight design makes it comfortable to wear.Features:Dual-channel, it delivering rich and crisp sound quality.Maximum support 8GB memory(TF card) allows you to listen to massive music.Support FM function, you can listen to your favorite music, foreign language songs, social or finance news and so on.Power-saving, it offers 6 hours of music playing time.Light weight, easy to carry.Note: The TF card is not included.Specification:Audio Formats: MP3 / WMA / WAVColor: Blue, Green, Red, Black(optional)Interface:1 * Micro USB; 1 * TF card slot(Support TF card up to 8 GB)S / Nratio: 86 DBOutput Frequency: 20-20 KHZBattery: Li-po batteryUSB: USB 2.0Operation System: Windows 98 / 2000 / XPPlay Time: Up to 6 hoursWorking Temperature: -10~45 degreePackage Size: 8.5 * 8 * 1 cm / 3.3 * 3.1 * 0.4 inPackage Weight: 80 g / 2.8 ozPackage List:1 * Sports MP31 * USB CablePackage List:1 * Sports MP31 * USB Cable