Product Features: Luxurious electronic-reinforced wooden board connected to a power source without charging. Analysis and settings screen. 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 against a variety of the strongest chess programs. Analyze your games using famous international chess engines. Connect 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 gift chess Pi electronic clock. The device is new in its box and luxurious bag.