FUNCTION: 1.Outside:use full steel art manfacture 2.Mp3 play:the highest sound quality MP3 watch 3.player,support MP3 & ADPCM 4.Time:Japan West Iron City core ,professional waterproof pointer watch ,exact time 5.U Dish :Electron movable hard dish function 6.Battery :Built in Li-ion charge battery. 7.Charge:Charge by USB or by connecting to computer 8.Shakeproof :Full shakeproof,avoid interfere 9.Record:High quality voice record 10.Inside record :direct Line-in record 11.EQ model:five sounds effects model 12.Repeat:AB repeat function 13.Delete:Current file delete function 14.Save electricity function: play over 10 hours after was charged 1.5-2 hours 15.Working: Red/Green/Yellow LED lights indicate working TECHNIC REFERENCE: 1.Charging Time :5-6 hours first time ,after 1.5-2 hours 2.Battery Effective Time :After full charge continue to play over 9 hours 3.Speed of File Transfer:USB 1.1 4.Bit Rate:32kbps?56kbps 5.Working T:20℃~+70℃ 6.Earphone Output Rate:5MW+5MW 7.Output Rate Range:20HZ?0KHZ 8.Support Contract Rate:32kbps~256kbps INSIDE PACKAGE : A MP3 watch A USB line A acoustics connection line A line-in recording line A install disk A earphone A user manual A repair guarantee Watch weigh:120g Include package weight:473g Inner Color Box Size:180*142*73mm Big Packing:available for 30pcs watches,Size:565*310*405mm