Security microphone for CCTV cameras that boosts low microphone output to a stronger usable signal and connects to devices with AV input such as DVR, VCR, TV. Key benefits Clearer audio capture: raises a microphone's low output voltage to a usable level for recording and monitoring. Adjustable sensitivity: sensitivity audio pickup with an adjustable control to match different environments and distances. Low noise, fidelity: designed to reduce background hiss and preserve audio detail for more accurate recordings. Broad compatibility: works with any recorder or display that accepts standard AV audio input. Easy installation: connects directly to AV input ports for straightforward integration with existing CCTV systems. Important attributes Function: audio pickup and preamplification to deliver stronger microphone output for recorders and monitors. Compatibility: compatible with devices that accept AV input, including DVR, VCR, TV and similar equipment. Size: compact form factor suitable for discreet placement near cameras or mounting points. Performance: sensitivity and low noise for reliable audio capture; sensitivity adjustable for different noise levels and distances. Practical use scenarios Store surveillance: add clear audio to CCTV recordings at checkout counters and entrances to help document incidents and support investigations. Facility monitoring: capture ambient sound in warehouses, loading areas, and parking lots to complement video evidence. Meeting or public area monitoring: record spoken exchanges in lobbies, meeting rooms, or small conference spaces where integrated audio improves situational awareness. What to expect A plugandplay audio solution for existing CCTV setups that require stronger, clearer microphone signals. Simple sensitivity adjustment to tailor pickup to the environment without complex configuration.