This Wireless monitor and camera kit is design for a long range signal monitor and cameras communications, it’s about 30-200m. 200m when no barrier or even 170m at maximum range for high quality output for time to time audio and video recording. This reversing camera kit has 2 wireless channels, so can connect up to 2 wireless cameras. Uninterrupted connection in Multi-Angle of the cameras matched with 7” SplitScreen Monitor will give you asatisfactory output. It has a camera with 120 degree view angle and 2.4Ghz transmission. Product Highlights 7” TFT-LCD Split Screen Monitor 800 × 480 resolution Audio recording for all 2 channels wireless cameras Split Screen Monitor It can be single screen or double screen DVR Recording Function Can support up to 128GB SD card (SD card not included, available to be purchased separately Wireless Rear View System You do not need to run wires to connect the camera and monitor. 2.4GHz Digital Wireless Transmission Up to 200m 2.4GHz Digital wireless transmission has no interference as compared to Analogue wireless transmission which is prone to interference Stable signal and HD image Improved wireless module to provide longer transmission distance of 30m-200m Dual antennas monitor with stronger transmission 30m with barrier, 200m when no barrier. 128GB System Format: PAL / NTSC Power Supply: DC 10-32V Power Consumption: Max. 6W Loudspeaker: 1.5W/8_ Operating temperature: -20~+70_C, RH90% Storage temperature: -30~+80_C,RH90%