Boat Rockerz 400 on-Ear Bluetooth Headphone so nice an beautiful modal . if we talk about the sound it has awesome sound quailty & volume. noise cancellation is great but we can hear headphone’s sound when it’sin use, the sound is clear and crisp . it give us 100% result of our money. I am useing this product since to last 6 month I gate full satisfaction during I use this headphone . this is so great product . so at last I wll say this product 100% complet & reliable . thank you