Retevis 2 Pin 2 Way Radio Earpiece Acoustic Tube Earpiece Headset with Mic PTT Compatible Baofeng UV-5R BF-888S Retevis H-777 RT21 RT22 RT27 RT-5R Walkie Talkies (1 Pack) Length of the Plug to PTT about 100cm;Length of the cable PTT to speaker about 108cm Two-pin standard diameterIis ear 3.5mm stereo of top pin and 2.5mm stereo of bottom pin The transparent tube connecting the ear bud makes you look like a secret service agent or a body guard and protects you from radiation Soft plastic earbud fits comfortably in your ear with a transparent acoustic tube which keeps your conversations private Simple and Convenient return process; 60 days warranty and 30 days no reason to return