Recommended for vehicles under 33ft, compatible with M5111, M7108, M7109, and RD series Monitors Provides interference-free reception for vehicles up to 33 feet guaranteed at high speed Up to 984 feet wireless line of sight wireless reception range in open spaces The HandyCamera comes with magnetic base for instant mounting and removing Metal Plate with 3M Tape is included in the package, you can easily stick it onto the aluminum or fiberglass surface and mount the HandyCamera Powered by a rechargeable battery, ultra-low power consumption for standby (only 30 uA) Water resistant IP67 rating level protects against rain and snow 720P image quality, 120-degree wide-angle lens, 6 IR LEDs for superior night vision A microphone built-in the camera picks up sounds which make reversing safer