I purchased these headphones last year in August for my son as part of his birthday gifts..
They came well packaged with good clear instructions and were easy to set up and use. Quick to charge up to.
My son and myself were pleased with them and the ease of use, volume control is good and the sound was clear with no interference or crackling at all.
The reason for me awarding these just 3 stars is that after 8months of use they no longer work.
We have tried various charging leads, with no luck. If they were still working I'd of rated 5 stars but I've marked them down by 2 just for this reason.