Check the listing for details. USA Car 4-Way Parking Camera 4 View Image Split-Screen Control Box +IR Control. Condition: New. Listed at 33.87 USD. we do not surggest the switch will connect the wireless camera, and the whole product can support PAL or NTSC,But not support for PAL and NTSC at the same time. choose a good quality camera to connect. A poor camera can not be determined by the control box When the product, ACC on, the blue screen, the product will work properly. 1, long press "CH4" button, turn on,enabled Power off system:PAL / NTSC (automatic recognition, note: connect the camera before Power on) Resolution 720 * 576, refresh rate 25F / S, peak value: 1vp-p, Resistance: 75Ω Voltage :12 VDC (5 V-15 V) Temperature: 0 ° -55 ° Size: approx.107 * 53 * 21 mm Color: Black Material: Metal Package Contents: 1 * Car camera control box 1 * Remote control 1 * Power cord 1 * Manual.