Pros: Bluetooth 4 compatible, good range, most comfortable headphones I have ever worn.
Cons: Kind of bassy, which I like but not everyone would. It's fixed by adjusting EQ.
I had a great experience with these headphones. They sound great for wireless and only $70. Most other bluetooth headphones were $100+ for the same quality.
I love being able to go to the gym and listen to tunes without cords getting in the way. I just leave my iphone in my bag and control it all from the headset.
I then go home to bang on my drums and again no cords in the way and good noise reduction.
These aren't something you would use in a professional studio, but for the casual, music lover like myself these were an awesome buy.