1. Screw-type terminal, BNC adds spring to fundamentally solve the problem of BNC loose image flicker. 2. Single passive transmitter, green double panel. Two-wire inductance + anti-interference element. 3. Passive transmitter, receiver, HD 200 meters, simulation 300 meters. 4. Supports HD-CVI/AHD/TVI analog HD cameras and analog ordinary HD cameras. 5. ABS plastic shell, durable to use, small size, delicate design.