Product Name: Head-mounted sports waterproof MP3<br />1. Classic style， sports waterproof MP3， this product IPX-8 completely waterproof， you can use for a long time in water<br />2. Storage capacity: 2GB / 4GB / 8GB<br />3. Support MP3 (8-320Kbps)， WMA format music player<br />4 built-in 100mA polymer battery<br />5. Direct continuous charger， you can also connect the computer to charge<br />6 continuous playback for about 9 hours<br />7. System Support: Windows ME / 2000 / XP / Vista， Windows 7， Mac OS0 9.X and above<br />8. Color: black， red， blue， can be customized according to customer's logo and packaging accessories<br />9. Operating temperature: 0 ° C-80 ° C， storage temperature: 0 ° C-80 ° C<br />10. Packaging specifications 105 * 80 * 38MM<br />11. Packing list: Host * 1 set， USB data cable * 1， manual * 1， certificate * 1， earplugs * 1<br /> <br /> <br />Precautions<br />1.MP3 2 hours per charge time is better， prolonged charging will cause premature aging of the battery， shorten the battery life.Do not use for a long time， please charge once a month.<br />2. Use a dedicated data cable to charge or transfer data.<br />3.MP3 in strict accordance with the system operation requirements， first "safe to remove the hardware"， then unplug from the computer， otherwise easily lead to the loss of the program.<br />4. After each use please clean the headphone hole in the water， headphones appear smaller sound to the headphone hole thrown water can be.