Play LIVE against players all around the world! This board is totally App driven App runs on both Android and IOS Fully English compatible App App includes player details including averages, and saves information in a large worldwide database Powerful Bluetooth 4.0 Smart Technology The power savings with Low Energy Bluetooth allows long term play on just 2 AA batteries (NOT INCLUDED) Easy installation, cordless. No worry of power outlet Player change button on board, or can use app to change players Power button switch on side of machine Communication starts as soon as you power on machine and start App 2 color LED on front of board to notify you when Bluetooth is connecting, and when is connected 21 1/2" x 19 1/2" x 1 1/4"