BOYA BY-MM1 Mini Cardioid Condenser Microphone Shoe Mount 1/8" 3.5 mm TRRS 1/8" 3.5 TRS The BOYA BY-MM1 is a cardioid microphone specially designed to improve the sound quality of videos on the basis of build-in microphones. With both TRS cable and TRRS output cable included, it can be used on Smartphones, cameras, camcorders, audio recorders, PCs, and other audio/video recording devices. BY-MM1 compact size and light-weight aluminum design will not be a heavy burden while shooting. Plug and play design, no need to worry the battery status.