Designed for both casual as well as hardcore competitors for thorough enjoyment and an immersive gaming experience 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 an immersive audio experience Requires four AA batteries (sold separately) or USB-C cable (sold separately) Officially licensed Tetris title ensures authentic gameplay