1、SPACE SAVING: High sensitivity microphone, with miniature design type, easy to install anywhere, greatly save space 2、OMNIDIRECTIONAL MICROPHONE: DSP circuit and dynamic noise reduction processor, built in echo reduction; Built in AGC for sound adjustment with built in overvoltage protection 3、REAL TIME LOW NOISE: High definition microphones with noise cancellation technology enable you to see and hear everything happening in your home or business in real time, anytime, anywhere 4、AUDIO CATCH: EPMIC is designed to catch audio from a specific area and works well in offices, cash registers, warehouses, offices, and anywhere else where audio needs to be catched 5、PRODUCT MATERIAL: Environment friendly ABS material, with pre amplified audio cable, additional power cable for camera 1 x CCTV Microphone Item Type: CCTV MicrophoneCommercial Use: Built in voice recognition deviceProduct Size: Approx. 25 x 1.5 x 1.5cm / 9.8 x 0.6 x 0.6inProduct Material: Environmental protection ABSProduct Parameters: Protection Range: 10 ~ 50㎡Transmission Distance: Approx. 100meter / 328.1ftPre amplified audio cable, extra power cable for cameraConnection Mode: Power input DC negative connector, power output DC positive connector, audio input whiteOperating Voltage: 9-14VDCFrequency Range: 60-55000HzAdjustable sensitivitySNR: 60dBOutput Impedance: 600Audio Output: RCACurrent Consumption: 5mA ~ 60mASize: Approx. 10mm / 0.39inWeight: 20 g / 0.7 oz(approx.)