This vintage Astatic Silver Eagle D-104 microphone is a great find for collectors and enthusiasts. With its silver finish and unique design, it adds a touch of retro charm to any collection. Please note that this microphone is untested, so its functionality cannot be guaranteed. The microphone is designed as a base type and requires a 9V battery to operate. It is compatible with a variety of brands and can be used with both CD and ham radios. This item is perfect for those who are looking for vintage radio communication accessories and is sure to be a valuable addition to any collection. The finish is pitted as seen in pics and the bottom cover is missing two out of three screws.