I think this headphone is my favorite think I bought, I love listen songs and I love headphones, is pretty, the battery works perfect and was a excellent deal buy this product! ) The unit, specifically the part near the usb charging ports, was hot and smelled like something inside was burning. 5 or 11 in most shoes. After getting two dysfunctional Parrot Zik 3 pairs I decided to start shopping around for different models. 5 sometimes 8. Like no sound at all, I had my pc at 70 volume like always and nothing came out. The only issues that we had were that the doors were a pain to get flush and even. If you are spending more time with your cans, you are most likely going to have to spend more. Plus, I saw these are considered quite stylish now! I do wish for the price they included a manual in the box.