Black Box with various function and input / output function as well as DVR, CCTV, Digital Camera, Camcorder, Image Player, VCR can fit comfortably in your hand
No further function is necessary for Audio -Video device
Black Box for car accident, CCTV for SOHO office, video / audio lecture in school, music appreciation, record illegal dumping waste, monitor babysitter, monitor parking car, security for long-term parking, CCTV for private shop, record for counseling or medical care at hospital, Record moving image for leisure or sport as UCC camera, snap shot.
