Cylindrical design, simple and elegant, easy to install, micro chip design, high-fidelity, sensitivity adjustable, with power / audio interface, operating voltage :6-12V DC  

 Frequency response :100-5500Hz  

 output signal amplitude: 2.5 Vpp/-25db  

Parameter

 Voltage: linear power supply (transformer) DC 9-12V

 Electric current, 18mA

 Output impedance: 600 ohm non equilibrium

 Apply to video recorders such as HIKVISION, dahua, hanbang.