It has a spring-like design so it fit snugly into the folds of the ear, but is still comfy and does not fall out easily. It works and charges fast but it is not as easy to use as the other one I have. I purchased to use in wet areas at the gym. I get more workout on the bike than walking on the treadmill. However, the cable will not fit the A50 headset because the base of the plug (plastic piece) is too wide for the micro USB to actually plug in. But, that being said, they were comfortable from the start. It is hard to find shoes that are both durable and pretty for my toddler. I was so happy to find these again! The pads are comfortable, and it has that nice slant backspace for ear endings at the top. Sound quality is basic and sounds far away.