There is another sensor at the front of the mirror monitor, it can sense the brightness of strong light from the back of the car, and then drive the reflectivity of the anti-glare mirror. When the brightness is less than 20Lux, SPM-TSR anti-glare mirror will start working.
eBay
XTRONS 14" FHD IPS Screen Ultra Narrow Bezel Car Roof Overhead Mounted Android Monitor Multimedia Player Note: This Product Does NOT Play Discs !!! 14" inch Full HD IPS Screen 1920*1080 High Resolution, Support 1080P Video Ultra Narrow Bezel Virtual Touch Buttons 155° Rotatable Angle Android 11 Operating System, Quad Core, 1GB RAM, 16GB ROM Support Youtube, Netflix, Prime Video, Disney+, Spotify Music etc. 25 Themes UI Built-in Dual Band WiFi Module Wireless Screen Mirroring Built-in HDMI Input Two Channels CVBS Input Built-in USB Port Built-in Stereo Speakers Support Bluetooth/IR Headphone FM-TX Audio Signal Transmission Colourful Aura Lighting Automatic Lighting Control Support Car and Home Remote Control Included.
eBay
【Sync Playback on Both Screens】2 monitors can play the same movies in DVD mode when you connect them together via included AV cable (Do not support separate playback). 【Region Free Headrest DVD Player】Support multi Region, compatible with DVD/CD/MP3/VCD/SVCD/DVD-5/DVD-9 formats. Built-in USB card slot up to 32GB with FAT32 format and direct play in multi-formats. 【5-hour Playtime & Last Memory Function】Built in a rechargeable battery, which can make the main player work for 5 hours, two monitors could work together for 2.5-3 hours. The Resume Play function allows you to continue playing your movie or video from where you left off last time. No worries about repeating or skipping. 【Front Clamshell Design with Dual Speakers】Super convenient to change discs and protect the lo.
eBay
【 Wireless apple carplay 】 You don't need to use a data cable. 【 Wireless Android auto 】You don't need to use a data cable to connect. You just need to turn on Bluetooth and WiFi to use Android auto.
eBay
It is easy to install without damaging to any parts of your car, only to clip the monitor on the original one. - Special optical lens substitute the original back-view Mirror. - Contrast ratio: 350:1.
eBay
Tableau Moniteur Pop-Up 4.3 " LCD Panneau Caméra Inversée Entrée Voiture Rear. Tableau Moniteur Pop-Up 10.9cm LCD Panneau Caméra Inversée Entrée Voiture Vue. Foldable design for added protection and low-profile dashboard appearance.
eBay
100% non-washout AHD 1080P sensor mirror image. 1 x 9" AHD 4CH QUAD Split DVR Monitor. 【HD Digital Monitor】 High resolution digital colour LCD widescreen video monitor, resolution: 1024 (H) 600 (V).
eBay
XTRONS 17.3" FHD Digital TFT Screen Ultra-thin Car Roof Mounted Monitor Note: This Product Doesn't have a DVD Drive. 17.3" FHD Large Digital Screen 16:9 1920*1080 Resolution Full HD 1080P Video Perfect fit for Large Vehicles: Coach, Bus, Motor Homes... Sleek and Elegant Touch Panel Ultra-thin Design & 130° Max Open Angle Superior Sound with Built-in Premium Speakers Built-in USB Port & SD Slot Built-in HDMI-input Port Support Screen Mirroring (HDTV05, HDMI01 Optional) Support Digital TV Receiver Connection (FV014, FV015DE Optional) Supports Positive and Negative Door Control Built-in IR / FM Transmitter Blue Atmospheric LED Light Bar Support Home Use (Need Additional AC Power Adapter AC05) Remote Control Included.
eBay