High quality: The earphone has clear sound performance and Noise Cancelling ,Convenient and concealment. | PTT MIC Function: Has a remote microphone with push to talk button .So no need to use the Mic of radio When you want to transmit. | G Shape Design : By adjusting the earplug in the ear hook can be adjusted to the most comfortable orientation, and the earbud fits snugly in the left or right ear with easy and keeps your conversations private. | K head connector: Ear 3.5mm stereo (top pin). Mic 2.5mm stereo (bottom pin).Space of two-pin:11mm .Compatible with Kenwood BESTFACE Wouxun and many other radios. | Clip: The earpiece has a clip on cable.It is very convenience for you to hold it onto your shirt.