Case of 10, Retevis Walkie Talkies Earpiece with Mic 2 Pin Acoustic Tube Headset, for RT22 RT21 RT68 H777, Compatible with Pxton Baofeng BF-888S BF-T26 Kenwood walkie talkie, Two Way Radio Earpiece

K head 2 pin two way radio earpiece; multi-brand compatibility; for Retevis RT21/RT22//H777/H777H/RT68/RT68H/RT19/RT22S/H777S/H777D/RT27/RT21H/MateTalk B4/RT86S/RB58/RB26H/C6B walkie talkies; compatible with Pxton Baofeng BF-888S BF-T26 Kenwood and more; former pin diameter of 3.5 mm and 2.5 mm in diameter after pin; double pin from 8 mm within and 11 mm center distance of 2 pin ^^ Comfortable surveillance earpiece; acoustic tube design; the mushroom head earplug of covert acoustic tube earpiece with mic is soft and comfortable; the security earpiece fits snugly in your ear easily; suitable for long-term wearing ^^ Clear sound quality; walkie talkie earpiece with sensitive mic to pick up clear nature sound for smooth transmitting; no distortion or attenuation; the mic built in can pick up your voice easily; sound is transmitted through air into ear canal; make communication more private ^^ Sensitive PTT; with PTT (push-to-talk) functionality; dont have to hold walkie talkies all the time when talking; just press the PTT button of radio earpiece to communicate; sensitive PTT button allows for precise pressing even when wearing gloves; great for smooth communications with your partners ^^ 360stainless fixed clip; that you can fix the PTT to the convenient place;
PTT to pin: 3.20 feet;
PTT to catheter interface: 1.87 feet; covert acoustic tube: 1.15
feet; total length: 6.22 feet