Sheepdog Commercial Grade Lapel Microphone with Acoustic Tube is a clear audio tube surveillance mic earpiece made of heavy grade surgical tubing. Comfort fit earpiece can be easily replaced for service or hygiene. Clip-on microphone unit includes PTT and stainless steel clip that rotates 360 degrees for easy use. Molded strain reliefs help protect headset earphone cables from excessive bending and pulling. High quality speaker delivers loud, crisp audio. Compatible with Hytera / HYT, TC-320, TC320 two-way radios.