Functions: Video and voice record synchronously Taking pictures Can be used as u disk Key specifications: Video format: 720 x 480 vga, avi Picture format: 1280 x 1024 jpeg, 1.3 mega pixel Easy operation with led indicator Usb standard port, need no drive or circumscribed electric power source neither Supports microsoft windows 98/2000/xp/vista 32 and automatically distinguish operating system Battery: high-capacity rechargeable lithium battery Battery charge time: about 2 hours Working time: can keep recording about 1.5 hours Memory: support external micro sd/tf cars 2gb/4gb/8gb (optional) Standard