1、Adopts professional anti noise microphone, carrying anti noise circuit board for super bottom noise suppression characteristics. 2、When the microphone is recorded, the frequency response lamp will flash with the audio signal strength when the microphone is recorded in one meter in the microphone. 3、External audio monitor port, plugging in headphones, can listen to recording in real time. A generic hot shoe mount on the shock absorber can be secured to the camera with simple installation. 4、Built in professional high performance heart shaped pickup has a capable range of 4 meters/13.1ft. The frequency response is wide and the sound resolution is high. Heart type recording range, recording is more directionality, and can suppress more surrounding environmental noise. 5、The external sensitivity adjustment knob switch can adjust the appropriate sensitivity and adapt to different sound intensities. External elimination of low frequency noise adjustment knob switches, eliminating low frequency noise in the environment to adapt to low frequency noise cancellation in different environments. Item Type: Camera Microphone Material: ABS Application: for Interview, Video Taking Weight: Approx.155g/5.5oz Directivity: heart shape direction Sensitivity: -36±2db RL=0.68KQ Vs=15V(1KHZ 0db=1V/Pa) Output impedance: Max. 0.68KΩ 1KHZ(RL=0.68KΩ) Frequency response: 20-16000Hz Working current: Max 30mA Maximum sound pressure input: 115dB S.P. L SNR: More than75dB Sensitivity deviation: 1.5V-1.0V, less than 3dB Service time: about 5 hours Battery: Built in lithium battery 300mAh 1 x Microphone 1 x Shock Absorbing Bracket (Installed) 1 x Charging Cable 1 x Manual Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.