I have a Shure GLXD+ Guitar Wireless system. The problem with it is, that it only comes with a cable (Shure WA305), which uses a straight TS jack. For my guitar I wanted to have an angled TS jack. The cable shure offers to solve this problem (WA307) is expensive and a bit too long. The Rean RT4 FCT-B is the exact same as the proprietary shure T4AF connector at a fraction of the cost. Pair this with an adequately thin cable (Cordial CMK 209 works) and a neutrik angled jack (Neutrik NP2 RX-B), and you can build your own guitar cable for a third of the price compared to the shure cable.