CCTV Tiny Spy Microphone Voice Audio Pick up Device

1x Wide Range Microphone MIC for CCTV Security Camera with DC Output Port Product Features: Add-on mini audio box for all Camera which need audio function High Sensitive microphone. With DC output port. Specification: Plug and Play Extremely Sensitive Great for Security Monitoring Higher S/N Ratio Range : 150 Square meters Audio Output: RCA Female Sensitivity : 200mA/ubar Work current : 5 mA-60mA Work Voltage: DC12V Frequency: 200-6000HZ Max output Voltage: 5V-upp