Clear and bright sound; the impedance of walkie talkie earpiece with mic is 32Ohm20%; low impedance provides a clear sound quality experiencelarge speaker deliver bright sound ^^ C shape earhook; not in-ear swivel earhook that makes ear piece for walkie-talkies is easy to clean; more hygienic; swivel earhook is suitable for left and right ears to wear; not easy to fall off ^^ Coil tube design; length from two way radio earpiece earhook to mic is about 14.75 in; length from mic to pin is about 33.07 in; retractable length of wire provides possibility for wearers of different heights ^^ K head 2 pin; compatible with Retevis RT22 RT21 RT68 RT68H H777 H777H RT27 RT86 RT86A RT86S walkie talkies; compatible with Pxton Baofeng BF-888S BF-T26 Kenwood ^^ Widely used; swivel earpiece for walkie talkie radio is suitable for multiple scenarios to use; such as staff in retail stores; large supermarkets; film and television production teams; restaurants; workshops; warehouses; hospitals; etc