Check the listing for details. USA Spy CCTV Wide Range Microphone for Security Camera Audio Surveillance DVR. Color: As Shown, Condition: New. Listed at 9.71 USD. SHIP FROM USA This is a brand new kind of listen equipment that has adjustable sensitivity for security camera, using high-fidelity/low noise processing chips, voice clear, appearance fashion, which applies to a variety of situations.This product contains HIFI process chip with low noise performance and dedicated AGC circuit so it is suitable for different types of Mic supervised listening environment. It is a good partner to be used with supervised TV and security protection system, can be used together with camera to achieve audio and video synchronization to monitor speaking within 5-100 square meter. Features & Specifications: 100% BRAND NEW. Plug & Play, easy operation Extremely Sensitive, adjustable. Great for Security sound Monitoring. Higher S/N Ratio. Audio Output: RCA Female. Sensitivity : 200mA/ubar. Work current :5 mA-60mA. Work Voltage:6-12V. Frequency:200Hz-10kHz. Max output Voltage:5V-upp. Mmonitoring Area:5m²~150m². Works with all versions of Linux. Total Length With Head:425MM. Dimension:40MM(L)x31MM(W)x18MM(H) Package Content: 1 x CCTV DC Power Wide Range Adjustable Sensitivity Mic Microphone