???<strong>Features:</strong><br />Built-in TF/ micro SD card slot support up to 32GB TF/ micro SD card( card NOT included).<br />Just save your loved songs in TF/ micro SD card and then play them with this sport player.<br />Doubles as a TF/ micro SD card reader if connect it to computer.<br />Supports MP3 WMA music format.<br />Built-in rechargeable li-on battery and charge by USB cable.<br />Easy to use｣ｬ "On/ off" toggle and 3 Key-press: Play/ Pause｣ｬ Volume+/ -(long press)｣ｬ Previous/ Next (short press).<br />Comfortable and secure for most users: bicyclist｣ｬ runners｣ｬ joggers｣ｬ walkers｣ｬ etc.<br />Wrap around wire free headphones｣ｬ designed to stay on your head.<br />Great quality｣ｬ super stereo sound lets you enjoy your sports and music at the same time!<br /><br /><strong>Specifications:</strong><br />Color: Black<br />Audio format: WMA｣ｬ MP3<br />S/N ratio: ｡ﾝ 86db<br />Output frequency: 20Hz｡ｪ20KHz<br />Port: Mini USB<br />Battery: DC 3.7V Li-po battery<br />Charge time: 1-2 hours<br />Playtime: Approx. 4 hours<br />Supporting system: Windows 98/ ME/ 2000/ XP/ Vista/ 7｣ｬ iOS<br />Working temperature: 0 Celsius degree-45 Celsius degree<br />Headset size: Approx. 15 * 13cm/ 5.9 * 5.1in<br />Headset weight: 26g/ 0.9oz<br />Package size: 19.5 * 16.5 * 7cm/ 7.7 * 6.5 * 2.8in<br />Package weight: 70g/ 2.5oz<br /><br /><strong>Package including:</strong><br />1 * Headset MP3 Player<br />1 * USB Cable