ITEM NAME:Professional Stereo Microphone Super Low Noise Cardioid Video Recording Mic E4Q4 Professional Stereo Microphone Super Low Noise Cardioid Video Recording Mic E4Q4 It only has a frequency range of 50Hz-16KHz, aluminum alloy material, effective shielding of environmental sound, built-in acoustic slot, higher sound resolution and omnidirectional sound pickup. Two recording modes that can be adapted to different sound intensity pickups. +10dB sensitivity-enhanced switch with 2x surround sound for dual microphones. 0 dB close-range directed focus interview recording mode. 3.5mm standard audio hole position for easy use. Indicator light: Lights up in green to indicate that it is working. Model: MIC-03 3.5mm Stereo Camcorder Microphone Name: Camera / Camera / DV Machine Microphone Monomer: electrostatic type condenser head Directivity: super-cardioid pointing Frequency response: 50Hz-16kHz Sensitivity enhancement: +10dB ± 2dB Sensitivity: -45dB ± 3dB (0dB equal 1V / Pa at 1kHz) Equivalent noise level: 24dB A Maximum sound pressure level: 130dB (THD Less than or equal to 1.5% at1kHz) Output impedance: 200Ω ± 30% (at 1kHz) Colour:black Material:Aluminum alloy Size:12*3.6 *6.8 cm Package Contents: 1* Camera Recording Microphone 1* Windproof Cotton 1* User Manual