Tuner Type: Capacitive Wireless: Wired Line length:30cm; Suitable for: camera-specific; Microphone Type: back-electret capacitor pole; Maximum Input; Sound Level: > 127dB (20Hz ~ 2000Hz THD <1% 2500 load); Point: the strong point Signal to noise ratio:> 68dB (1KHz @ 1Pa); Frequency response: 50 ~ 15000Hz; Sensitivity: 10mV/Pa (-27dB ± 2dB @ 1KHz 2500 load 0dB = 1v/Pa); Output impedance: 200 (@ 1KHz); Power supply: DC 9-52V phantom power Accessories: windscreen; rubber ring; carrying pouch; Product description: This section sensor is a back-electret capacitance sensor. It is primarily for the use of cameras specially designed random which uses imported capacitance pickup unit to ensure stable and reliable. Strong directivity ensures sufficient noise suppression pick up sound direction other than that you want to capture the sound. Copper rugged metal housing design and give the sensor a good shielding increased its own anti-jamming performance.