Motorola Original OEM PMMN4013 PMMN4013A Remote Speaker Microphone with 3.5mm Audio Jack, Coiled Cord & Swivel Clip, Intrinsically Safe 3.5mm audio jack IP Rating: IP54 Windporting Swivel Clip Compatible w/ CP110, CP185, CP200 Series, PR400, CT250, CLS1410, XTN, GTX, RDX