The Comm Guys 1-Wire Commercial Series Earhook Earpiece and Microphone Privacy Headset has a noise-cancelling microphone and is sensitive to a whisper. Polyurethane jacketed Kevlar cables and durable strain reliefs provide added durability when operating in the field. A coiled cable above the Push-To-Talk creates a perfect fit for most users and prevents pulling on the earpiece. The in-line PTT makes this the ideal earpiece for any user that prefers a clean look without having to hide excess wire. Push-To-Talk can be clipped to uniform lapel or collar via the reinforced metal swivel clip. Hear private two-way radio audio transmissions loud and clear through the high output speaker. The TCG-M1-G1 1-Wire Surveillance Earphone can be worn on the left or right ear. Ideal for security, hotels, casinos, restaurants, and more. Be ready for any situation with the Comm Guys 1-Wire TCG-M1-G1 earpiece. Simply insert connector into walkie talkie, connect swivel clip to uniform lapel or collar, and place earpiece on ear. Once connected, audio is redirected from radio speaker to earpiece. Just press PTT and begin communicating.