• Interesting Training Method: Children can improve their memory in an interesting game with lights and sound effects
• Memory Game: Watch the lights and remember the colors, then repeat the colors
• Brain Training: Suitable for those who lack attention, students office workers, or just for fun
• Multi-function: It has the music function and the flash function, when you press the button, you will hear the sound and see the lights
• Self-improvement: It's good for intellectual development,hand-eye coordination, and memory ability

Specifications:

• Material: Plastic
• Power Source: Built-in 3 * Button Batteries
• Item Size:
• Small: 6 * 6 * 2.6cm/2.4 * 2.4 * 1in
• Medium: 8 * 8 * 3cm/3.2 * 3.2 * 1.2in
• Large: 10.5 * 9.5 * 2.7cm/4.1 * 3.7 * 1.1in