Features:Built-in TF/ micro SD card slot support up to 8GB TF/ micro SD card( card NOT included).Just save your loved songs in TF/ micro SD card and then play them with this sport player.Doubles as a TF/ micro SD card reader if connect it to computer.Supports MP3 WMA music format.Built-in rechargeable li-on battery and charge by USB cable.Easy to use?∨ "On/ off" toggle and 3 Key-press: Play/ Pause?∨ Volume+/ -(long press)?∨ Previous/ Next (short press).Comfortable and secure for most users: bicyclist?∨ runners?∨ joggers?∨ walkers?∨ etc.Wrap around wire free headphones?∨ designed to stay on your head.Great quality?∨ super stereo sound lets you enjoy your sports and music at the same time!Specifications:Color: Blue & BlackAudio format: WMA?∨ MP3S/N ratio: 86dbOutput frequency: 20Hz20KHzPort: Mini USBBattery: DC 3.7V Li-po batteryCharge time: 2-3 hoursPlaytime: Approx. 3 hoursSupporting system: Windows 98/ ME/ 2000/ XP/ Vista/ 7?∨ iOSWorking temperature: 0 Celsius degree-45 Celsius degreeHeadset size: Approx. 14 * 13cm/ 5.5 * 5.1inHeadset weight: 29g/ 1.0ozPackage size: 19 * 18.5 * 6.5cm/ 7.5 * 7.3 * 2.6inPackage weight: 76g/ 2.7ozPackage including:1 * Headset MP3 Player1 * USB Cable
