I was a bit skeptical about these, but they work really well (considering the price!). I currently have them paired with Tin HiFi T2 (drives them well), but also tried with a few others (DMG, T3, P1, DM6, etc.). The T2 pairing seems to be the best, and this makes for a very cheap yet great sounding set!
LordBorgI just got a set of T3s and I'm attempting to use an adapter to convert to the coaxial connectors on the BTC2 to MMCX so I can have that BT 5.0 support. Hopefully it works well that way.
oriel.riveraI'm not even sure its the same 2 pin connector. The HD 6XX has a different connector shape, meanwhile 0.78 pins are smooth. But they wouldn't power them properly anyway, you'd need a portable amp just for wired use.
Micro-usb is still a deal killer for me on these. I haven't carried a mUSB cable since my first type-C phone 6 years ago. I wish someone would make this product with bluetooth 4.2+, microphone, and type-C already, but for now my FiiO BTR3 will have to keep carrying the burden.
I'm so sad that these don't work very well, I want a good Bluetooth mmcx cable and I had thought MEE might be the brand to make it happen at a reasonable price.