Z Tactical Bowman Elite II Headset; designed for active combat and high noise applications; suitable for a variety of usage scenarios; such as paintball airsoft; with strong practicability; bring you best communication experience Could be used under the helmetheadset with flexible and fully adjustable band for comfortable wearing; allowed to be worn under helmet or hat Big PTT Button; ptt is built into a sturdy shell and can be operated even while wearing heavy gloves; with 360°rotating back clip; more convenient to use Suitable for both ears; headset with a removable design; the microphone could be installed in different directions according to your needs; left and right ears both can be used K head plug 2 pin; compatible with Retevis H-777 RT21 RT22 RT68 RT19 RT-5R RT17 RT18 RT27; compatible with Baofeng UV-5R BF-888S BF-F8HP; compatible with pxton Arcshell AR-5 eSynic two way radios and more