Am writing this review after 3 months of experience.
First talking about boat headphone built quality which is not strong enough.
Ear cushions are not soft they are very tight and start causing pain in ears after 1hrs.
Sound is very loud and noisy, refinement of sound is not available.
It takes 1-2 hrs to full charge this headphone.
And battery backup is around 3-4 hrs.
Bluetooth connectivity is also very poor.
Range is also not far 2 mtr only.
Strongly recommend you guys not buy this product otherwise you will have to repeant.
Go for some better brand like sony, phillps,