After using for 5 months? Yeah, after that the battery died. And guess what? Theres no other way to replace the battery. I thought maybe warranty could claim it and give me a new pairs - after all I paid 9k for it. Nope, no warranty claims. The sounds is really good- no doubt. ANC is top notch but the battery is really bad. When I bought it the battery health was 45hrs in 10mins charge or something and now its 10 minutes maybe even less than that. I didnt even excessively used it. I think 9k for this is completely unjustified.