I use it mainly with my ps4 to play call of duty black ops 4. Feels like they were just made for my foot. Super crisp highs and nice deep lows. The cord wont stay in the phone, so unless you put it somewhere and do not touch it, it constantly becomes disconnected. Works well when new. I think they are for slim narrow feet. 1 speakers. As I have more time and experience, will update. Obviously it can still come off due to the small surface area it covers, but it wasnt just coming off every time like the first unit they sent me. occasionally disconnect in middle of call (iOs) and control button very worn in 6 months (see photo)