Function summarize Camera:0.3M pixels USB transfer rate:2.0(Hs) Camera format:AVT format Camera dimension:352*288 Optional memory:2GB/4GB/8GB supports video and voice recording function Built-in ithium battery,keep on working for 2 hours No nees to install drivers for windows ME/2000/XP/MAX OS 9.2.2 or higer version windows(except Windows 98) Technology specification Connect to computer:USB 2.0 Flash:2-8G Charge Voltage limit: 4.2V Battery norm:3.7V/180mAh Charge hours:2------3H Videotape: Electric current:110-120mAh Can used 9hours after full charge Format:AVI Pixels:352*288 Accessories: Model LM-WSC02 Spy Watch User Manual - English USB Cable Power Adapter (110-240V 50/60Hz)