Designed for both casual as well as hardcore competitors for an immersive game play Suitable for all ages Simple game challenges your brain and helps sharpen your reflexes 2.75-inch full-colour high-resolution display delivers vibrant visuals for an enhanced gaming experience Adjustable screen brightness ensures optimal visibility in any lighting condition Built-in speaker with volume control provides customizable audio enjoyment 3.5mm headphone port can be used to connect your headphones for a great audio experience Requires four AA batteries (sold separately) or USB-C cable (sold separately) Officially licensed Tetris title ensures authentic gameplay Includes lanyard for convenient portability and easy access