The Boya Lavalier BY-DM2 microphone is a lightweight and compact microphone that allows you to record high-quality voice and other sounds using your smartphone. The BY-DM2 is compatible with all Android devices that have a USB-C connection (Android version 5.0 or newer). The included microphone clip allows you to place the microphone close to the sound source. The cardioid directionality ensures that the sound is consistently recorded at the same intensity. It doesn't matter which side you speak into the microphone. Because the microphone draws power from your smartphone, you don't need batteries.