1. LCOS mini-project technology 2. Support ... ratio100:1focusingBy handvideoVideo formatplay RM,RMVB,AVI(MPEG-4),VOB,DAT,MP4musicMusic formatMP3,WMA,FLAC, ... battery :2100mACharge timeBetween 4 hours and 6 hoursOTHERmemory2GSD card expansionSupport Mirce SD card up to ... microscopes, optical instruments, including other science andoutdoor products designed for children.In 2010, the exclusive ...