After telling myself buying a quality pair of headphones was worth $300 plus i did the research an for the price point an value (so i thought) i landed here sony xm4. First off it never speed charged at all. Which was 80-90° the reason i went there. Thought i was doing something wrong until about a month in it started to charge when an how long it felt like meaning i could plug it in for hours only to pick it up an have 10° batterie. Than i started to notice an electrical burning scent coming from somewhere in my office i could’t locate but weirdly i only noticed while wearing headphones huh. Well 3rd month in an i now see the plastic around the port had melted, you know they did run noticeably hot since day one i just thought that was the large mega $300 components at work idk. Needless to say i would have been much happier sticking with $20-$40 headphones that sound same to me may not have noise cancellation but generally last about a year an don’t mind when they break. Also the text talk feature is a major pain. The music constantly would stop at any noise i turn off feature an if the headset rubbed against my hood or jacket it would turn back on. Answering calls sucked too since it would ring i could answer or accept call with headset but to engage i would have to fumble to locate my phone to switch from iphone call to headset every time an at-least 50° of calls hung up before i got there. It was a constant annoying race each call an if i missed someone important i would be upset an to some it all up. Thats what this purchased left me $300 broker an upset. Im contacting sony “support” maybe i will update if possable

They were great headphones while they lasted. Now they regularly have unbearably loud feedback noise in both ears. These have stat indoors at my work computer since I got them; they have been very well taken care of. I called support, and they would not replace them because the failure happened after one year. Do not expect these headphones to last!

loses signal %26 shuts off music player. player is 2 foot away from headphones. Disconnects at random rimes. usually 2-3 songs into listening session. NOT a phone/player issue. ALL other headphones work without this issue, including Dr Beats Pro, Studio 3, Skullcandy etc. Sony has had this issue with these for over 3 years (according to reviews when searching for "disconnecting issues.") Sony has not addressed the problem. I have most recent software (firmware) updates fot this product. It's a shame. I was a recording engineer for 20 years (in major Studio.) Sony was always reliable. These were the closest to a flat freq. curve. Even after "optimizing" for my ears, the before was a flat curve AND the after was a flat curve. I prefer a Flat curve output %26 then adjust to MY preferred EQ. These were the closest to True Audio (not tweaked with BASS or Vocal etc.) However, with the Disconnecting issue, these phones are Useless to me %26 will be returned. Maybe the 1000XM5's are better, but at $399 they are over priced, as are ALL wireless Noise Cancelling fones, including Dr Beats, Skullcandy, Bose etc. ALL others had issues with TRUE audio. Audio was "shaped" to sound "better." Not the True audio produced by the engineer. I know what that sounds like. I have had many original mixed final 2 track original masters in my hands (including all Beatle final disc masters with George Martin's original notes.) Quite a thrill for a Recording Engineer. These headphones are GOING BACK. Still on a search for a good pair of headphones.

really great headphones I can go for a long time wearing them without them feeling uncomfortable.

The best experience. The audio quality is the best one. Better than apple headphones or airpods

I rated this 5 stars because it was exactly what I was looking for and more.

The headphones keep disconnecting they are give to many issues

We had an issue with a prior pair of these headphones.

Awesome!!!!! Best headphones in the world man.

Great product Exactly what I was looking for