This microphone effectively eliminates background noise and records sound accurately and clearly for flawless professional recordingsThis professional video microphone is powered by a 3V 850mAh detachable lithium battery, allowing you to use it indoors or outdoors anytime, anywhereSuitable for film production, live recording, professional interview, broadcast applications, etc.The capacitive microphone is made of high-quality ABS material, with exquisite workmanship, which is durable and stable to useSpecifications:Product: MIC-01Power supply mode: DC3V (CR2,3V lithium battery)material quality: ABSType: Capacitive microphonePoint to feature: Uni-Directional x2Dimensions: 22 x 130mmFrequency response: 30-15,000 H zOutput impedance: 200SNR: 76dB (1KHz at 1 Pa)Sensitivity: -40dB 2dB (0dB=1V / Pa1KHz)Maximum sound pressure: 120dB (1KHz harmonic distortion 1% T.H.D)Installation method: universal hot shoe seatAccess mode: 3.5mm microphone jack