Transducer:Electret Condenser Polar pattern：Cardioid Frequency Response：35-18KHz +/-3dB Sensitivity：-42dB +/- 1dB / 0dB=1V/Pa, 1kHz Signal to Noise Ratio: 76dB SPL Plug：3.5mm TRS and TRRS connector Dimensions：Φ22*81mm Net Weight:86g/0.19 lb The BOYA BY-MM1 is a cardioid microphone, which specially design 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 comes out in compact size and light weight aluminium constructure , it will not be a heavy burden while shooting. Plug and play design,no need to worry the battery status. Included inside with a anti-shock mount,which can effectively reduce unwanted vibration, cable and handling noise. Also included a furry windproof shield,which specially used for minimizing the wind and environmental noise for outdoor recording , make sure the sound crystal clear. Features • Compact on-camera microphone • Compatiable with smartphones, DSLR cameras, Consumer Camcorders, PCs etc. • Rugged metal construction • No battery required • Professional furry windshield included Brand BOYA SKU 100502082_NP-1020836077 Model by-mm1