BOYA BY-MM1 is a cardioid microphone, specially designed to improve the sound quality of videos compared to built-in microphones. With the included TRS cable and TRRS output cable, it can be used with smartphones, cameras, camcorders, audio recorders, PCs, and other audio/video recording devices. BOYA BY-MM1 features a compact size and lightweight aluminum design, so it won't be a heavy burden during shooting. Plug-and-play design, with no need to worry about battery status. The included shock mount effectively reduces unwanted vibrations, cable noise, and handling noise.