Well they really really sound good and BASS is really heavy, Using these with my Galaxy S4 and it never sounded so good on the OEM headset.Size is a bit big for my ears but I need to try the smaller size earbud provided No Complaints over it. Over all it’s a one bass heavy headset with call answer button it also pauses skips music.Wish it could have the volume rocker as well. Awesome headphones with awesome frequency response. U can feel the thumping bass in ur head. It is for people who like listening to electronic music n beats. But performs overall well. I had a Sennheiser CX 275 before. But this beats my old CX 275 hands down.! Sony is the best.