Boya Digital Shotgun Microphone BY-DM100 for Android USB-C The BOYA BY-DM100 is specially designed for products with a USB-C connection, such as Android phones. It is a professional condenser stereo microphone, suitable for both indoor and outdoor use. The Boya BY-DM100 works without batteries and gets its power from the smartphone or other USB-C device. In addition, it comes in a handy hard pouch with a zipper; so you can easily take it with you everywhere. New with box. Top of the box is torn.