- Very comfortable and light - Sound is very good, bass quality is unexpectedly good - Battery life. Supposedly 22h after just 2h of charging.

- Bluetooth is very finicky - Does not come with it's own dongle - The button controls are confusing, and there's no button to turn the headset off.

I was very impressed with the sound quality of these. A few times I thought the sound was coming through my 2.1 speaker system because the bass end is so good. The ear phones are also very comfortable and light, possibly some of the best I've had. However, using the headset with my desktop computer and an (albeit old) third party bluetooth dongle is an exercise in frustration. The headset comes with two "profiles", a hands-free mode (which has mono speakers), and a standard mode which behaves as you would expect from a headset. The major issue I had was I couldn't get the microphone and speakers to work at the same time, and enabling the microphone either caused the headphones not to work, or would set the audio profile to hands-free/mono mode with terrible quality audio. I also had my computer completely lockup and reboot due to bad bluetooth drivers (which probably isn't a fault in the headphones, but it is something to consider if you want to use these with a desktop/laptop that doesn't have built in bluetooth connectivity). Unfortunately, since headsets cannot be returned, my options are to shell out more money for a better bluetooth dongle, or just toss these into the junk pile.