K head plug 2 pin; Ear 3.5 mm stereo of top pin and mic 2.5 mm stereo of bottom pin ^^ Handheld speaker mic make it easy to speak and hear without lifting your radio ^^ Rotatable clip in the back allows you clip the mic everywhere you want ^^ Push-To-Talk button and microphone are located on the accessory for quick and easy use ^^ Sensitive microphones and speakers allow you to communicate clearly and in a noisy environment