Elegia, first closed-back headphones - Focal | Focal
Hifiman Ananda BT : The Bluetooth King | Earmass
Amazon.com: TINHIFI T3 Plus 10mm Dynamic Driver in Ear Monitor, LCP Diaphragm HiFi IEMs Earphones : Electronics
If you ever wanted to use your studio headphones wirelessly, in hi res 24B/44K (bt), here you go. It sounds impressive, I can't hear any difference with my $900 desktop dac/amp. :