Feature:  Power supply: 5V.     Instructions for use:  1. Power on   2. Press left and right buttons to select game items;  3. When selecting a game, 1 to 4 are game items, 5 is the screen brightness selection, and 6 is the game sound switch;  4. Enter the selected game with the OK button;     Game button description:  1) Tetri operation instructions: the left and right buttons are the buttons for moving the box left and right, the bottom is for the box to accelerate and fall, and the confirm button is for the box to rotate.  2) Snake operation instructions: the up, down, left, and right buttons are the moving direction of Snake.  3) Instructions for racing car operation: The left and right keys are for the car to move left and right, and the OK key is for obstacles and acceleration.  4) Operation instructions for hitting the plane: The left and right buttons are for moving the plane left and right, and the OK button is for launching bullet.     Package includes:  1 x Board.  1 x Cable