Here is the Astatic D104-M6B amplified microphone. Very popular model among some operators. Astatic with this newer model compared to the old one has change the external key up button from a full length one to more of a square button. I like the old style myself. It may take some time in dialing in the gain control for that sweet spot because it has pretty good pick up. Got the gain too high you will certainly have the background noise, sound tinny and scratchy. When set up right your voice will be loud, clear and may a slight amount of background noise when driving. When used at a base station environment you can run the gain control a little higher. The microphone does produce a sharper sound than some which makes it pretty good to punch through a crowded channel. It does take a little time to install the battery because the back cover has to be removed. The cord is light and flexable. Having a more square design and small key up button it may take some time to feel comfortable with it, Bulldog.