The sound was great when I was using them. Estos H8i eso sí pierden un poco en la escena musical en comparación a su hermano mayor y al resto de la competencia. It has some great features like painless setup, automatic self-docking charging, auditory suction power and error codes, cliff detection, compact size, a great battery life, powerful suction, flexible control devices (remote/app), easy maintenance, scheduling/automation, and cheap replacement components for order. I bought these because the white earpads on my Beats Mixrs started to peel and leave white peelings on my neck and clothing. I normally wear size 7-1/2 to 8 and bought the size 9/10. These slippers are comfortable. The 2nd con is that voice quality is so poor I cant use them for talking at all. My first pair have lasted a year and with careful use and regular cleaning they still look pretty good with little wear or signs of rips, tears etc, but I liked them so much I started the hunt for a new identical pair. 5 of clearance and this has 9. Theyre the really soft foam pads, which I like.