The BOYA BY-BM2021R Video Shotgun Microphone Red is a professional microphone that delivers enhanced sound performance than your smartphone, tablet, camera or camcorders built-in microphone. Key features that contribute to high-resolution sound includes a unique super cardioid polar pattern that focuses on sound that’s right in front of the mic and reduces sound coming from the sides and rear; a reinforced ABS construction that weighs only 63g making it easy to transport, and perfect for handheld shooting; and without the use of any switches, its mainly powered by smartphones, cameras, and camcorders.