This is the first time Ive ever been disappointed in an Astro Gaming product, as Ive been a continued and loyal customer of their products for years now. As other reviewers commented, the fit is quite small. The QC3. I talked to the Manufacturer (after a 1 hour hold) and there is no way to turn it on or off, or troubleshoot. So I suggest you to buy a bit big size. I guess it doesn?t matter since it comes with a matching party lol I like it regardless Puzzles increase in difficulty, making it appealing for ages ranging from 6 years (with help) to adult. The HP is attractive but still heavy, not a bad choice, but not the best option IMO. Its a bit tricky to get the duration of pushing the middle button correct to either turn them on and off or to put them in pairing mode. I ordered a second one for the guest room just because I really liked it.