Description: Memory training game: development your brain to increase memory in the game. Memory training dynamic structure: After listening to the sequence of the demonstration, press the buttons in order, and the pressing will have a dynamic sound Attractive for Baby: With each correct iteration of the color sequence, the number of colors in the sequence is constantly increasing, the little toys are great wisdom, and the intelligence is developed by hand, and the baby can't put it down. Use your hands and brains,ehance hands-eyes coordination, promote parent-child relationship. Perfect gift for kids children, children of colleagues,boys girls. Specification: 1. Start the game, press the memory button, and then start to enter the game 2. According to the light and music prompt, press the corresponding button, each level adds a button, and every 5 levels is an advanced level (the game is over if the designated button is not pressed within 10 seconds) Size Chart: Size:Approx.5x5x1.5cm/1.97x1.97x0.59in Package Includes: 1 Piece Memory Training Game(4 Pack) Note: Color might be slightly different due to the color calibration of each individual monitor. Please allow slightly measuring deviation due to manual measurement.