In wired/passive mode, the sound quality has very clear treble and with a bit of bass, however, you will want to switch on the headphones as it will give you the best listening experience. If you have an equalizer app on your phone. You can make your bass very deep without any sound distortion. Even on max volume on headphone and phone. Sensors dont work well in gym environment, depending on your bump motions, it will trigger the pause/play randomly, same with yawning. Battery can last up to 5+ days even when leaving it on but not using it. The build quality doesnt feel flimsy at all, especially where the swivel point on where the cups are, they feel like they will last a while, its not weak plastic that you see on most headphones. Cushions are in between soft and hard, so spec users, beware of ear pain after extended use. The media controls dont work in all apps. Review is done mainly via bluetooth on a S6+ with equalizer app Music genre listened; trance and many sub genre of trance.