My biggest concern was that they would stay in my ears. I've had rubber tipped headphones in the past that wouldn't stay in my ears. After using them for about 2-3 hours of building shelves in my garage, they stayed in really well. They fit comfortably, the volume was very good, and they blocked out A LOT of sound. The other things I was impressed with were the touch controls, connection, and call quality. Whenever I use Bluetooth headphones my wife mentions the poor call quality but with these she said that the quality was good. After the first day of my first pair of true wireless headphones I'm very impressed. I can't say these are the best headphones of their type because I haven't tested them all, I can say that these are a great value for the money and if you are looking for a set that provides excellent call quality, a strong connection, and great (for the cost) sound. These would be recommended. Very happy with my purchase and considering getting another set for a friend.