K head 2 pin plug; compatible with Baofeng BF-888S Uv-5R; Retevis H-777 RT22 RT21 RT68 and more; not compatible with Midland and Motorola radios Walkie talkie earpiece with mic; long enough; length from PTT to 2 pin about 34.7 inches; length from PTT to earphone about 7.8inches The earplug can rotate 360°; fits right and left ears; clip can also be moved and rotated; very easy to adjust the position; this two way radio headset fits well with your work Durable PTT button is located at the top rather than the side; more comfortable and convenient to use Ear hook allows comfortable wearing and keep in loop in ears without dropping for smooth communications during activities