Sound quality is irrelevant if the headphones wont actually stay put in your ears! Its worth every penny. I?ve always liked these beefier models because I have big palms. So can be frustrating when using the product Sena did away with the great shake to pair feature on the 20S - WHY?/??if using a mesh with two people and trying to use Bluetooth intercom with others it is a constant game of who is being dropped and who is jumping in and out and the mesh is turning off and on again. In addition, being able to turn off individual also helps to eliminate that personally annoying glow / illumination of a room at night due to all of the back-lighting and LED indicator lights that are part of so much equipment these days. I started asking around trying to find someone to bathe and shave her for me. THEY ARE THE BEST. I wear a 7 1/2 but ordered a 7 because they tend to run large. I can only usae them while wearing socks, they rub all over