FiiO on Twitter: "FiiO BTA10 Bluetooth Adapter for ATH-M50x Then it comes to the superior sound, due to the high-performance Qualcomm QC3005 Bluetooth chip's support for high-quality wireless audio codecs. Altogether, it
BTA10 Datasheet(PDF) - Sirectifier Global Corp.
Added the FiiO BTA10 to my M50x. Sounds good, now with the convenience of Bluetooth : r/headphones