The BCLW41 belt clip is a passive mounting accessory designed to attach MTP41 series transmitters to a belt or similar mounting point. It provides secure, tool-free access and unobtrusive placement during performance. Compatible with MTP41, MTP41S, MTP41S-UN and MTP51-JP units, it carries no active electronics or RF functionality and the manufacturer does not list mounting hardware or exact dimensions on the product page.