COVERT EARPIECE FOR YAESU / VERTEX RADIO This high quality earpiece by Pentagon is made from quality components and durable materials which makes it the choice of professionals. The microphone is also designed with discretion in mind. It can be clipped onto a collar, tie or lapel and quickly activated with the push to talk (PTT) button located in the centre of the switch. Featuring both an earpiece and push-to-talk (PTT) microphone, this is a practical and hard wearing radio earpiece for doorman, bodyguards and anyone working in security services. This earpiece by Pentagon made from components and materials that are durable, reliable and ensure the earpiece won't let you down in the middle of an emergency or challenging situation. The earpiece provides excellent sound quality through a covert acoustic tube, which can be attached to single pin Yaesu / Vertex radios that required 3.5mm jack (full list below).