... .5mm(H)6Battey typeBuilt in Li Polymer(1800mAH)7play timeaudio(shut off screen and with earphone)about 30hrs,video..about 5hrs; E ... qualityREC volumeSupport +1,+2,+3,+4,+5OTHERSFM inne record14Power off timePower off time .OFF,3M,5M,10M, 15M,20M15other CalendarSupportG-SENSORSupportUSB HOST(USB2 ...