Main functions: recording video and audio at the same time, taking photos, recording audio alone, watch, web camera, usb drive,waterproof
2)  Video format: AVI, 1280*960 resolution
3)  Picture format: JPEG, 3264*2488 resolution
4)  Audio format: WAV 
5)  Internal memory: 2GB/4GB/8GB
6)  USB interface: 2.0（Hs）
6)  Charging time: about 2 hours
7 )  Battery use time: built-in Li battery, about 2 hours
8)  Operation systems: No need for driver installation if the operating system is Windows ME/ 2000/ XP/vista or above (Windows98 is excepted).