
QuietComfort® 35 wireless noise cancelling headphones are engineered with world-class noise cancellation that makes quiet sound quieter and music sound better. Free yourself from wires and connect easily to your devices with Bluetooth® and NFC pairing. And enjoy up to 20 hours of wireless listening per battery charge.
A: Battery is not replaceable, but you can still use these with a wired connection even if its dead, you just wont have the noise cancelling. 15 minutes of charging however gets you roughly 2 hours of use!
Q: Is there a delay in listening when listening to tv?
A: We don't recommend using this speaker connected wirelessly to a tv. There can be a delay between the audio and video which is very distracting. However, it does have a 3.5mm jack for a wired connection.
A: With over ear headphones you are always going to experience some leakage that's just a downside of the type. So for example in ear headphones have almost no leakage while most on ear and over year will almost always have some especially the louder you play your music. Because the headphones are so amazing at noise cancellation you really don't need to play your music over 50% to hear very clearly. And I would say others wouldn't be able hear your music unless unless you listen around 70-80% volume.
Q: Is this comfortable to use while running?
A: These are comfortable to wear for long periods of time but I wouldn't wear them while exercising. They are not rated to be sweat, weather, and/or moisture resistant and I hate wearing on-ear and over-the-ear headphones (like these) while exercising as my ears get sweaty and hot. Your best option for Bluetooth exercising headphones are the new Bose SoundSport wireless earbuds. They are moisture resistant, lightweight, wireless, and won't cause your ears to get too hot.
A: Never a dumb question when considering spending $350. You will connect with the included 2.5 to 3.5 cord and the included plug adapter.
A: I am curt using them now with a large storm outside (thunder and heavy rain). I didn't hear the entire storm until I looked out side. These will help you.
Q: Can you pair with two devices at the same time? i.e. phone and ipad
A: You can concurrently have two devices connected to these headphones at the same time, but only one device can be playing audio to the headphones.
A: So many different answers... It goes to show you that audio quality really is in the ear of the beholder. Personally, I found that these produced adequate bass but it was never overwhelming and they never really "thumped." These definitely aren't headphones for "bass-heads." The QC35's don't produce a flat sound, like the sound that audiophiles/audiophools over want. The bass is boosted as are the highs (producing a commercial v-shaped sound signature) but the bass isn't as pronounced like it is with the Beats Studio Wireless or even the V-Moda Crossfade Wireless headphones (the later being the most bass-heavy). If you didn't like the QC25's, you aren't going to like these. Both had "slightly higher than average" bass output though. It sounds like you want something with even more thump. You aren't really going to find a proper pair of wireless headphones, that have good noise cancellation, and produce large amounts of bass. Yeah, the Beats Studio Wireless headphones technically have noise cancellation but it sucks and might as well not be there. You might want to check out the V-Moda Crossfade Wireless headphones though. They have very pronounced, yet clear bass. I think that they sound better than any wireless headphone currently on the market (even better than the Sennheiser Momentum 2.0 headphones) due to their bass levels. They also have pronounced mids and highs along with a really wide sound stage. But they don't have noise cancellation. You also need to buy the XL earpads ($20) for them as the included earpads are too shallow and become uncomfortable after a short time of listening (less than an hour).