Ever buy any of those crazy chinese knockoffs/accessories for your Wii (or any console)? It's really hit and miss. A few work well, but for the most part they just suck. I have a component cable which really works well but a sensor bar that doesn't work when i'm further than 3 feet. And what gets me the most is the instructions that they include. The spelling and grammar is sooooo bad, it's just cracks me up inside... lol... example.. "The wireless sensor bar is a sensable adition to you're nintendo product. Battery life is of great time and cordless function is clean and steady. Play of the wii will involve all family. Enjoy!"