this is our manufacturer self-design has had the patent.product ourself, pc bar sensor for wii remote controllers!it means: use this receiver, it can make you control any pc-game by wii duo controller, especially for internet-game.any RPG game , wii remote controller will show you the real experience and good performance, mix game fun and sport fun together!, as you know pc-game software is less expensive than video game software, so it will rather raise player's curious.