Product Features: A luxurious electronic-enhanced wooden board that connects to a power source without charging. A screen for analysis and settings to display moves and variations. Optical sensor. It identifies the computer's move when you make your move, and there is an option to undo and replay the game. Luxurious royal edition electronic wooden chess pieces. Play and analyze against a variety of the strongest chess engines. Connects to a computer or phone via Bluetooth. Ability to connect to popular sites like chess.com, lichess.com and play online on the board. For those seeking luxury and serious about studying chess and improving their level. Comes with a free chess Pi electronic clock as a gift. The device is new in its box with a luxurious bag.