*We will arrange the shipment in 48 hours (Except for holidays).*We accept dropshipping, please note it after place the order.*We always test the item 3-5 times before delivery, please check the parcel and item when you receive it. Installation Guide: 1. please turn off FM radio,wifi or other electronic product to avoid the signal interference.2. AV1 signal is wired access signal, AV2 is wireless receiving signal (2370 and 2510)3. There are 2 channels for the cameras:2370(with guide lines for reversing) and 2510(without guide lines for monitoring). Please switch each by pressing the 3nd button on monitor or pressing model Select on remote4. For maximum signal point the antennas towards each other5. Keep monitor and camera at least the distance of 2 meters(about 78.7"). or camera and monitor will interfere with each other6. The IR camera has night vision, it will turn red when light is low Package list: Truck display x1Camera x1 or 2Power cord x2 or 3Signal antenna x2 or 3Remote control x1Fixing screw x4Bracket x13M sticker x1Sun visor x1Product manual x1