At a price of 1150 including bonuses, I took 2 pieces and one for 1750 (2 gray-orange and blue-green) - just to replace worn parts for the future (once with a mega-discount) and maybe one as a gift. For 7k or 3k I would definitely not take something like that. With any more or less modern technology, they work perfectly. Tested with iPhones 6 8 Imakami from different eras The sound is clear, but external sound is not blocked (which is not necessary in my case)
Black Leather Headphone Stand: Universal Headset Holder For Gaming And More - SAMDI Product
42 Review
A Durable And Protective CaseSack For Bose QuietComfort And SoundLink Headphones
41 Review
Protect Your Earbuds On-The-Go With Small And Portable EVA Case - Perfect For Airpods, USB Drives, Cables And More!
34 Review
Canvas Camera Case Bag With Shoulder Strap For DSLR/SLR Cameras - Black, Medium Size By Evecase
30 Review