The Klein Electronics Agent MultiPin Y5 single-wire earpiece is a great choice for Vertex radio users. It features a sturdy 'C' swivel earloop and a clear-audio speaker that comfortably rests on the ear. With an in-line PTT button and microphone, it's perfect for shift workers who need to share earpieces. You can use it on either the left or right ear. Compatible with Vertex models VX820, VX920, VX824, VX924, and VXD720.

Using this earpiece is easy. First, put the 'C' swivel earloop over your ear, making sure the speaker sits comfortably on your ear. Then, connect it to your Vertex radio. The in - line PTT button is used to talk on the radio, just press it when you want to speak. It can be used on either the left or right ear according to your preference. When not in use, keep it in a dry and clean place to avoid damage. Don't pull the wire too hard to prevent breakage. Periodically check the connection points to ensure good audio quality.