19.5 inch Android Roof Mounted Screen with HDMI Input, Screen Mirroring and Wi-Fi | CM195AS

The 19.5 inch screen folds down from the roof, so everyone in the back has the same view. At 1600×900 it's sharp enough for films and cartoons at a normal seating distance.

IPS panels keep their colour and brightness when viewed from the side, which matters when the passengers are spread across a row of seats rather than sitting straight in front of it.

It plays HDR10+ and 8K UHD video, so high quality files don't need converting first.

Screen mirroring puts a phone's screen on the big display. A passenger can pick a video or game on their own phone and everyone in the back can watch it.

The unit runs Android and connects to Wi-Fi, so streaming apps can run on the screen itself rather than on a phone held up between the seats.

The built-in HDMI input lets you connect another video source, such as a games console or a media player, and show it on the roof screen.

A USB port lets you load films and music from a USB stick, which is handy for long journeys where there's no signal for streaming.

The screen supports 1 set of Bluetooth headphones, so one passenger can listen without the sound filling the car.

It's audio output only: the headphones can't be used for phone calls through the unit.

An RCA audio output lets you send the sound to another audio system in the car, so the film soundtrack can come through the speakers rather than the screen.

An octa-core Cortex-A55 processor and a Mali-G31 graphics chip run the Android system, with 2GB DDR4 RAM and 32GB of storage. That gives room for the apps and downloaded videos passengers use most.