NSKI Walkie Talkie MiNi Handheld Remote Microphone Speaker MIC for Baofeng Kenwood Puxing Wouxun TYT HYT Pofung Walkie Talkie 2 Way Radio 360 Degree Swivel Two-pin standard diameter: Ear 3.5mm stereo(top pin).Mic 2.5mm stereo(bottom pin);Space of two-pin:11mm Has a remote earpiece plug adapter (3.5mm headphone jack) - plug in and listen to your conversations discretely 360 degree swivel lapel clip on the back of the microphone allows you clip the mic everywhere you want Mini size; Sounds clear;Has a Metal Spring Clip;Built-in PTT and microphone is very handy Radio can be placed anywhere with it conveniently,located - wear it on your collar to keep the volume near your ear