MP3/Mp4 Watch Main features: Color :Optional Time :Japan West Iron City core ,professional waterproof pointer watch , exact time U Dish :Electron movable hard dish function."wear"the information anytime and anywhere Electricity offer :Unique save electricity function ,charge 1.5-2 hours play over 9 hours Battery :Built in environmental protection save energy accmulate Hi Li-ion charge battery Charge :Charge by USB or by connecting to computer Shakeproof :Full shakeproof ,avoid interfere Earphone:Use five-grade contract line ,convenient and easy use(choose to match ) Play :MP3 super music enjoy ,support MP3 and ADPCM Record:Available in meeting ,study ,business,getting proof ,etc.high quilty and long-time record Inside record :First having Line-in direct record MP3 watch ,transfer all kinds of music to MP3,the effect of recording is      wonderful Delete :Current file delete function ,delete the inneed files and songs you like Repeat :Meet need of learning foreign language for 2008 Beijing Olympic Games,"Fight for every minute" "wear" foreign      language in hand A-B repeat function Sound effects:Five sound effects model ,press remind function Receive :FM receive function (available in full-plastic shell,the effect is wonderful) Working: Red/Green/Yellow LED lights indicate working System platform:Window98/Me/NT/2000/XP/Mac Accessories: Earphones USB Cable mini CD with video conversion software Wall AC - to - USB charger English language user guide