Model Name BOYA Connectivity Technology Auxiliary Connector 3.5 mm Jack Special Feature Microphone About this item Fits Smartphone, DSLR Camera Camcorder and Recorder. With 2 Cable, TRRS & TRS Cable. Compatible with Smartphones, Canon, Nikon, Olympus, Pentax, Sony DSLR Cameras and Camcorders. No battery Required----Do not need the battery, Just use it directly with your smartphones or DSLR cameras. Compact and Light Weight. Only 86g/0.19lb, With a Portable Leather Case, you can take it anywhere. Frequency Response：35-18KHz +/-3dB; Sensitivity：-42dB +/- 1dB / 0dB=1V/Pa, 1kHz; Signal to Noise Ratio: 76dB SPL Rugged metal construction and anti-shock mount, which can effectively reduce unwanted vibration, cable and handling noise. Also included a furry windproof shield.