Motorola 56517 Earpiece with Inline Push-to-Talk Microphone Compact earpiece with microphone for communicating hands-free over 2-way radios Push-to-talk microphone lets users speak through radio while it remains in holster Mic clips easily to clothing; over-the-ear receiver is non-invasive and hygienic Ideal for restaurant staff, maintenance workers, bellmen, and other busy employees Compatible with Motorola's CLS, XTN, VLB, and AUX series radios