The Grand Board Dash is fully App driven and works on both Android and IOS. The power savings with Low Energy Bluetooth allows long term play on just 2 AA batteries (NOT INCLUDED). Joint a game with people all over the world in real-time! Internet connection is required. A convenient 2 color LED on front of board notifies you when Bluetooth is connecting, and when it is connected. Easy installation and cordless. No worrying about finding a power outlet. Available in Blue or Green. PLEASE NOTE: Any warranty or tech support issues MUST be handled through the HELP link on the Gran app, or by contacting Gran through Facebook. PER THE MANUFACTURER WE WILL NOT ACCEPT THESE BOARDS BACK FOR TECHNICAL ISSUES. Any and all technical, defect and troubleshooting issues will need to be handled directly with GRAN. Please click here if you would like to go to the Gran Facebook page. You may also reach Gran via email at support@gran-darts.com Compatibility: Bluetooth: MUST have Bluetooth 4.0 to connect with GRAN BOARD. Dimensions: 21.5" x 19.5" x 1.25" CALIFORNIA PROPOSITION 65 WARNING: Cancer and Reproductive Harm - https://www.p65warnings.ca.gov