The Lectrosonics WMBCWIRE Stainless Steel Spring Wire Belt Clip is specially designed for WM Transmitters. It allows the transmitter to be worn on a belt or another wardrobe item in a low profile manner. This belt clip comes with a set of thumb screws and a set of screws for mounting as per your preference. Two Hex keys (Allen Wrenches) are also included for set screw installations.