Might as well look for one of their wired headphones. I've spent over half the time using the wired connection. That offers a lower quality listening experience. The rest of the time is trying to keep the headphones connected to the device. I've only had them for 2 weeks and my power button doesn't work and the headphones are unable to stay paired for longer than 5 minutes. At this price point it's honestly not worth it. The quality of music and equalizer customization is amazing and not being able to use it because the headphones can't figure out how to connect is just disappointing.

Sound is fine, not incredible. Not loud enough. Yet another product without buttons. Has a power button that is finicky, causing the headphones to connect when you don't want them to. Can't connect with a wired connection without digging out the manual. If it wasn't a gift, this would've been returned. Never had Sennheiser headphones before, won't have them again. Disappointed

While in a call, the microphone picks up all noise from the surroundings, while the other party does not get any noise cancellation of my surroundings. It is impossible to make reasonable calls while there is some noise around, e.g., in a restaurant or in an airport.

The battery life and sound quality are really good (the bass is probably the best part for me). However, the transparency and noise-canceling modes could be a bit better (though, I honestly don't really care about it that much). I like how the headphones turn off automatically when you put them in their case and how they turn on when you take them out. Unfortunately, the touch controls and smart pause don't always work as they're supposed to -- but most of the time they do. They're really comfortable, which is cool. The case isn't that big, considering the headphones don't fold, which is good. Overall, I really like them; I didn't give them a 5-star review because, for the price, I feel the headphones should fully deliver what Sennheiser promises their customers.

Left ear cup rattles when the bass is high and the sound does not come out equally in each headphone driver

I like the Smart Control app and believe it's a fantastic way to control all my Sennheiser headphones. I especially like the EQ.

This company never misses and always produces the best in quality. Sound is by far the most eargasmic of the wireless headphones. Keep it up

I love that they pause playing the music/video when they are taken off the head and that they have excellent sound quality for all of my music!!

Has great audio range, instrumental and vocal but anything below 200hz I get speaker crackle, and also has a pretty empty mid-range.

Awesome design, comfortable fit, outstanding sound. One of the best on the market. Would highly recommend.