CAS Durable 2 Pin Acoustic Tube Earpiece Headset Straight-through In-line PTT with Microphone and industry-leading 30lbs pull strength at both ends of the PTT. Works with Motorola: CP88, CP100, CP110, CP150, CP200, CP200XLS, CP200d, CP450, CT150, CT250, CT450, CT450LS, GP2000, GP300, GP308, GP68, GP88, GP2000, BC120, GTI, LTS2000, PR400, P040, P080, P110, P1215, P1225LS, PRO3150, SP10, SP21, SP50, XTN446, XTN500, XTN600, XV1100, XV2100, XU1100, XU2100, XU2600, VL130, VL50, MAG ONE/BPR40, BC90, CP125, CP185, DTR Series, GP280, CLS1110, CLS1410, BC10, BC130, GP350 (requires Motorola adapter HLN9482) Tekk: XU100, XV100, XU1000, XV1000 Quick disconnect clip secures the earpiece and provides additional cable strain relief Twist off acoustic tubes- hygienic quick and easy swap between multiple users sharing equipment Surgical Tubing won't fade or freeze Discontinued item - no stock replenishment