Just in, new for 2019, added DVR functions for all 4 wireless inputs. Wirelessly record up to 4 cameras to an SD card and have the ability to playback video on the monitor. The SD card is hidden under a secure door for security purposes. Our iBeam 7" Wireless Monitor with Quad Output allows drivers to clearly see up to four camera feeds on one large, color LCD screen. Choose multiple display layouts to find the option best suited for the driver's camera setup. The wireless monitor has pairing capability for up to four cameras, including activation triggers for each input. It has a powerful 2.4GHz digital connection and up to 450 foot wireless range to connect to cameras. A convenient remote control is included for toggling between camera displays. Setup is easy, with either dash or bracket mounting options and the convenience of wireless installation. This monitor is a reliable solution for commercial vans, trucks or larger vehicles with more blind spots. Specifications: New and improved for 2019 - DVR functions for all 4 wireless inputs!!! Max. 128 GB SD card. 7" color LCD screen. Built in 2.4Ghz digital Wi-Fi system for linking with cameras. Can pair with up to 4 wireless cameras (ex. TE-WPC-M or TE-CCWRM). 450' wireless range. Display any camera or any combination of 2 or 4 cameras simultaneously. Activation triggers for each camera input. Includes remote control.