Green backlight function. Push the red switch on the right side of the console upward to turn on the backlight. The screen will display better. You can continue playing games even in low-light locations. This is one of the best gifts for others and the best companion when traveling or spending boring time. Large screen, the screen area is 3 times that of ordinary brick game consoles, allowing players to see more clearly; ergonomic appearance design, better grip and comfortable operation. There are 23 built-in games, each with different modes. You can press "Rotate" to adjust the number at the top of the screen to select a game. Number "01" is a classic building block game. Many people like it. After selecting the number at the top of the screen, press the up/down buttons to select different game modes. Classic, nostalgic and puzzle games can bring you joy. Game difficulty and speed can be adjusted. After selecting the game you want to play, press the left arrow key to adjust the difficulty level before the game starts, and press the correct arrow key to adjust the speed to meet the needs of players of different levels. Pause and play the game again without restarting next time. Operation method: Press the "S/P" button to pause the game, then press the "ON/OFF" button to turn it off. Next time, press the "On/Off" key to start the game, then press the "S/P" key to start the game. Powered by 2 AA batteries, you can buy it easily. 5 AA batteries last 4 weeks (depending on battery quality). Product weight/size: 90g/16 * 8 * 2CM; Product weight/size: 110g/16.5 * 8.5 * 2.5CM; 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. Sold by-Minnanxin