Impact PRSM-HD3 heavy duty speaker microphone with 3.5mm earpiece jack. Crystal clear audio with Kevlar reinforced, RF-shielded coil cabling. Small form ergonomic shoulder microphone head. This shoulder mic can withstand the elements and is built for demanding environments including construction, manufacturing, and industrial applications. 360 degree clothing clip. Heavy-duty anchored Kevlar coiled cable. 3.5mm audio accessory jack. Superior audio, crystal clear voice quality. 3-Year Manufacturer Warranty.