Retevis 2 Pin Speaker Mic Compatible with Baofeng UV-5R BF-888S BF-F8HP Kenwood Retevis H-777 RT21 RT22 RT27 H-777S Walkie Talkies (10 Pack) Remote speaker microphone almost all work with Baofeng UV-5R BF-F8HP ; Kenwood and Retevis H-777 RT22 RT-5R and more Shoulder mic with Kenwood standard 2 Pin Plug allows universal compatible use for business and outdoor activities Durable PU coil cord allows you extremely get long term usage experience Push-To-Talk button and handheld remote speaker Mic are located on the accessory for quick and easy use Simple and Convenient return process; 60 days warranty provide by us and 30 days no reason to return