Wonderful price at Walmart, and I knew that Fairywill was a name that people had been raving about, I thought that the fact it was wireless, and came with a USB charger, was fantastic, the whitening product when used with the light is one of the best I've tried, and the difference is noticeable immediately, the only drawback is that the back charging portion of the device is not waterproof, so you have to be careful, other than that it's a marvelous device, a great brand, and currently at an unbelievable price