Granboard3s, developed in Japan, is an online smart dartboard and currently the most advanced model on the global market. Granboard offers the largest online community in the world. Choose your opponent and challenge them to a match, whether they are waiting for you in Tokyo, New York, Madrid, Amsterdam, or Berlin. Video and audio transmissions can be turned on or off via a tablet or smartphone. See your opponent and talk to them if you wish, and find dart friends in the Darts World Community. The free app is available for Android and iOS. Connection is established via Bluetooth 4.0. A micro-USB port on the Granboard3s allows for power supply to the cool LED lighting on the outer ring of the board. A variety of linkage LED effects are displayed with the award animation.