Retevis 2 Pin Walkie Talkies Earpiece D Shape Headset Earpiece Compatible Baofeng UV-5R BF-888S BF-F8HP Retevis H-777 RT21 RT22 RT27 H-777S Kenwood 2 Way Radios (10 Pack) 2 way radio earpiece with mic; Kenwood standard 2 pin plug k head type work with most brand two way radios The durable PTT button allows push to talk hands free communications; sensitive to pick up the clear loud sound to transmit Walkie talkie headset with remote microphone earpiece ensure you clip it collar close to mount for smooth communications Total length 135 cm;Length from D-ring to PTT 35 cm; Length from PTT to connector 100 cm; PU Wire cable with advanced material for greater durability long term use Simple and Convenient return process; 60 days warranty and 30 day return with no questions asked