?Perfact and professional Service?All HMTECH monitors are tested and fully packaged before leaving the factory. If there are any quality issues with the product, you can contact us for assistance. HMTECH focuses on providing customers with better products and services. ?Unique Design and Warm Tips ?With a multi-angle adjustable bracket, the bracket groove is made of rubber, which protects the edge of the display well and supports the LCD screen display stably. The portable hdmi monitor is light and easy to carry. NOTES: 1). NO COVER at the back of the monitor. 2). NO WORK for Mac System or PS5. 3). NEED an extra Micro HDMI to HDMI cable if connected to Raspberry Pi 4. ?Dual Speaker and Brightness Adjustable?HMTECH 7-inch screen is equipped with dual speakers, which can support up to 3Wx4O, and the volume can be adjusted according to needs. It is perfectly used for video playback, game experience, and online course learning. The brightness of the screen can be adjusted through the“MENU”button on the left to meet the needs of use in different environments and better protect the eyes. ?Plug n Play and Wide Compatible?Signal via HDMI port, power via Type-C port, drive free, HMTECH 7 inch lcd monitor is plug & play. Support Raspberry Pi 4/3/2/1, Windows 7/8/10/11 PC, TV, video game console like NS/XBOX/PS4. Other devices or systems like Retro Pi, NOOBS, Banana Pi, Debian, Ubuntu and Kodi are all supported. *Need an extra Micro-HDMI-HDMI for Pi 4. ?Raspberry Pi Monitor?HMTECH Raspberry Pi display adopts tempered glass and full bonding process, with a resolution of 800*480. Raspberry Pi lovers can't miss this uniquely designed small monitor! Easily mount your Pi to the back of this 7" screen monitor. Four holes let you mount a small display to whatever DIY IoT project you're working on.