【K Head 2 Pin Plug】Maycall walkie talkies earpiece use K Head 2 Pin Plug that is compatible with Baofeng UV-5R/888S, Retevis H-777/R21/RT22, Kenwood TH-F6/F6A/D7 and so on. To see more compatible information, please seach in the description page. 【PTT Mic Function】Radio earpiece has a remote microphone with push to talk button .So you don't need to use the Mic of radio When you want to transmit.You can keep in touch with your team without distraction or discomfort. 【Easy to Wear】The sound tube of the walkie talkie earpiece with mic is close to the ear, designed ergonomically, comfortable to wear, and not easy to fall off, keeping your conversations private. High performance control of PTT, clear communication through ear piece for radio, and comfortable pressing sensation. 【Variety of Applications】Police, private security, public service, hospitals, bars, restaurants, military, paramilitary, private communications & corporate security. The applications of this earpiece for walkie talkie radio are endless. Great for the Security Industry, Hunting, and various activities. 【Warranty】Simple and convenient return process.180 days warranty and 45 days no reason to return Maycall Walkie Talkies Earpiece with Mic Universally compatible with most two way radio Don't work for Midland, Icom, Motorola Radio! Variety of applications Police, private security, public service, hospitals, bars, restaurants, military, paramilitary, private communications & corporate security. The applications of this walkie talkie earpiece are endless. Great for the Security Industry, Hunting, and various activities. What's in Box? 5 Pack Maycall Earpiece ATTENTION: Don't work for Midland, Icom, Motorola Radio! Compatible with Maycall: MC-528/MC-558 Compatible with Retevis: H-777/RT21/RT22/RT-5R/RT-5RV/RT1/RT2/RT5/RT7/RT23/RT26/RT27/H-777S/RT28/RT15/RT46/RT50/RT52 Compatible with Baofeng: UV-5R Series / BF-480/490/320/V6/520/530/999/888/777/666S/777S/888S/ Baofeng UV-82 Compatible with TIDRADIO: TD-V2/TD-M8/TD-777/TD-60/TD-M9/TD-UV5R/TD-F9GP/TD-F6/TD-H6 Compatible with KENWOOD: TH-F6/F6A/D7/D7A/D7AG/D7E/F7/F7E/G71/G71A TH-G71E/K2/K2A/K2E/K2ET/21/21AT/21BT/22 TH-22A/22AT/22E/25/26/27/28/31AT/31BT/41AT/41BT TH-205/-215/225/235/235A/235E/315/41 TK-370/ 370G/372G/373G/320/340/340D/348/350 TK-2100/ 2160/3100/3101/3102/3107 TK-3118/3130/3160 etc Compatible with HYT: TC286 386 2685 3865 6685, TC 278 378 388, TC 2100 2088 Compatible with Linton: LT-2288/3288/6288/5288/3188/3260/2268/3268,/6288/6188/3288A , KG-UVD1/UVDIP KG-669/659/679/689/639/699/801 Compatible with QUANSHENG: TG-K4AT/2AT/22AT/45AT/42AT/25AT/UV Compatible with RELM: RPU416,RPV516,RPU499,RPV599X Compatible with WEIERWEI: VEV-3288S,VEV-6288,VEV-3288