MEPHISTO (Tournament Style) Sensor Board (with Pieces) The "M" chessboard features a Mephisto logo, 81 dimmable LEDs (4 per square) and fully automatic piece recognition with ultra-fast and reliable RFID scanning technology. The board is equipped with ultra-fast and solid RFID scanning technology that,when paired with the Mephisto Phoenix Module, Millennium Exclusive Computer Modules or ChessLink (not included),offers a very natural playing experience with fully automatic piece recognition.This is ideal for setting up positions quickly and easily. Thanks to the 4 per square LEDs, you don't need to look anywhere else than the boardduring your game to seeopponent moves and other information.The set includes 34 skillfully crafted solid wood chess pieces the classic "Timeless" design, with a near 3" king. Expert attention is given to fine tune the real wood veneer to compliment the module and pieces.While designed specifically for use with the Mephisto Phoenix, these board and pieces are compatible with Millennium Exclusive boards and pieces. IMPORTANT NOTE:This product is not a stand alone electronic chess set.INCLUDED IN THIS PRODUCT: Mephisto Phoenix M - inch Chess Board; Mephisto Phoenix M - 3" Timeless Chess Pieces; 4 Pin Mini Din Cable; To learn more about Mephisto Phoenix system,see thisPhoenix Blog article hereTechnical detailsChess specific propertiesSuitable forall chess lovers, from children to grandmastersPieces includedYes, handmade real wood premium chess pieces with integrated RFID chip, piece felt and weightsAdditional pieces2 queens additionally includedMagnetic piecesNoPiece compartmentPiece storage premium packagingMeasurements of chess board15.75 x 15.75 inchesSize per square5,5 x 5,5 cm / 1.625 x 1.625 inchesKing's height2.83 inchesPower SupplyBatteries requiredNoPower supply connectionYes, 100 - 240V 50/60 Hz Input - 9V 4A OutputPower supply includedNoMeasurements & WeightsDimensions chessboard15.75 x 15.75 x 0.79 inchesDimensions computer unit7.1 x 5.12 x 3,54 inchesLength connecting cable39.37 inchesModel number & age recommendationModel numberM901Age recommended by manufacturer10 Years & Up.