brand new and high quality Support 1920 x 1080 (maximum) Support USB upgrade Includes VGA / HDMI-compatible / AV / TV / USB interface Screen voltage: 3.3V / 5V / 12V for DC power supply: 12V Board size: 3.6x18.7cm/1.42x7.36inch Remote control size: 4.5x17.5cm/1.77x6.89inch USB upgrade steps: Put the "LAMV29.bin" document into a USB flash drive, then insert the usb disk and keyboard into the board. The keypad indicator will flash when the power is turned on. When the light stops flashing, the upgrade is complete. Note: This item without instructions and no after sales service, thanks for understanding. Package includes: 1 x Controller Board 1 x Remote Control Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.