The Saramonic SR-VM4 is a high quality condenser microphone with super-cardioid characteristics for cameras and cameras with an integrated 3.5 mm TRS mini Jack microphone connector. It has a signal power adjustment, high pass filter and high frequency boost for best sound quality. A special new mounting system is responsible for noise and crackle suppression, which suppresses unwanted noises during camera or camera movements. Power is supplied by two AA batteries, the microphone has a low battery indicator. A "deadcat" type cover is included, which reduces unwanted noises caused by air movement. Compatibility Cameras, DSLR and cameras with 3.5 mm mini jack input TRS Specification - directional characteristics: super-cardioid - the frequency response: 20-20kHz - tenderness: -32±3dB (0dB=1V/Pa,@1KHz) - Output impedance: 50? - signal-to-noise ratio: 80dB - volume control: -10dB / 0dB / +20dB - high-pass filter: 75Hz - integrated connector: mini Jack 3.5mm TRS - power supply: 2 x "AA" type batteries - Battery life: 720H - weight: 141g - dimensions: 239 x 108 x 54mm - working temperature: -20? - 60? Set contents - Saramonic SR-VM4 microphone - foam casing - deadcat