Retevis Walkie Talkie Earpiece Headset with Mic Noise Cancelling Headphone Overhead Headset Compatible Kenwood Retevis H-777 RT21 RT22 RT27 H-777S Baofeng UV-5R BF-888s 2 Way Radio (1 Pack) Two way radio headset with boom mic offer crystal clear audio; great use in noise background Kenwood stander 2 pin plug K head compatible with most Chinese brands walkie tallkies; but not compatible Motorola radios and Midland radios The walkie talkie earpiece allows wear comfortable and stay on ears well; no need worry about it will slip off during activities Tactile PTT provides hands free communications without holding the radios Simple and Convenient return process; 60 days warranty and 30 days no reason to return