Review on Jam SilentPro Wireless Bluetooth On-Ear Headphones: 15 Hr Playtime, Lightweight, Hands-Free Calling by Kyle Armstrong

They really ring to my little ears but that's after a few hours of use. The noise-cancelling function alone, without music playback, is enough to drown out most of the ambient noise in the office. They're so good that a friend tried them out at a meeting and four other people in the group bought the same headphones. They charge easily and last a good 4 hours. I wish it came with some sort of hardcover case to protect it in my pocket. I have a second pair for home but I exchanged them for my travel pair because the band broke. So be careful when you keep them in your bag.