RMCE-BT2 - High-Resolution Bluetooth® 5 Earphone Communication Cable - Shure United Kingdom
MEE audio BTX2 Bluetooth wireless universal MMCX adapter cable with Qualcomm Qualcomm® aptX™ and aptX™ Low Latency technology, microphone, and remote (2019 version)
Westone - Westone Releases a Full Resolution Audio Bluetooth® Cable
RMCE-BT1 - Shure USA
Amazon.co.jp: Bluetooth Headphone Cable, Bluetooth 5.1 Universal Adapter Cable, Support LDAC, Aptx Adaptation, Aptx-HD, AAC, SBC Audio Protocol, 180mAh Battery 30 Hours Playtime : Electronics
Review: Shanling MW200 Hi-Fi Bluetooth Cable – Is Wireless High-Fidelity an Oxymoron? - Headphonesty