A 5.5-inch monitor with 1600nit high brightness, allowing you to check 4K video with touch operation. I purchased it new last year, but I'm selling it because I haven't used it much. I think I actually used it for about 3 hours, without using it outdoors. A film is applied to the LCD screen. - Model: F5 PROX - Size: 5.5 inches - Resolution: 4K - Brightness: 1600nit - Touch Function: Touchscreen - Accessories: All items shown in the photos. Thank you for looking.