mini hidden camera 1.Camera DVR calculator function 2.Built-in 4GB 3.640*480 30fps resolution 4.Video picture synchronous Calculator Mini cctv hidden cameraCamera DVR calculator functionVideo format: AVI Video Resolution: 640x480 Image format: JPEG Image resolution: 1280x960 Power supply (DVR): Built-in Rechargeable battery LCD screen size: 10.5*2.5CM (L*W) Calculator power: 1*AA battery (Not ...