I have used a custom set of UE 11 in-ear monitors for 7-8 years now, with the Bluetooth adapter, for my morning bike rides. Unfortunately I lost the UE Bluetooth charger, and was unable to charge the Bluetooth cable. I found another Bluetooth cable online and ordered it, but found it used the MMXX 2Pin connector, not the proprietary UEM IPX connector.
I eventually found the Linsoul adapter, and while they were pricey, I ordered them. This was a great purchase — I can now use my UE IEMs with my new Bluetooth cable, thus improving my morning rides, and the quality seems solid and well-built. Five stars for sure! Thank you, Linsoul, for this excellent adapter.