VideoSecu Microphone High Sensitive Preamp Audio Mic Kit - High Gain

Our review of the VideoSecu Microphone High Sensitive Preamp Audio Mic Kit finds it best suited for professionals and hobbyists who need discreet, high-gain audio capture alongside video. The single biggest reason to buy is its on-board preamp IC that raises a microphone's low output to a usable level, delivering clear, boosted audio with low noise so quiet sounds and distant voices are recorded reliably. For anyone adding audio evidence capture to DVR, VCR or AV-input systems, this kit blends a tiny 5mm mic element with power and a long cable for practical installation.

Key Features

• Built-in preamp IC: Raises the microphone's low output voltage to a stronger signal so connected recorders and monitors receive usable audio without extra external amplification.
• High gain and low noise: The circuit is tuned to maximize sensitivity while keeping background hiss down, enabling capture of faint sounds in many environments.
• Auto level adjustment: The on-board circuit helps even out varying audio levels so sudden changes are less likely to clip or become inaudible.
• Miniature microphone element: At about 5mm diameter the mic is easy to hide in cabinets, fixtures, or inconspicuous mounts for covert or professional installations.
• Complete kit included: Comes with a 12V DC 500mA power supply, 50ft video power cable, and a security warning decal so systems can be deployed immediately.

Who It's For

This kit is ideal for surveillance technicians, video pros, and anyone who needs to add reliable audio to AV-input devices such as DVRs, VCRs, or TVs. The combination of a preamp and high-sensitivity mic suits use cases where the source audio is weak or distant and needs boosting before recording.

It is less suited for casual mobile recording or smartphone use because it is designed for fixed installations that accept AV input and require a dedicated 12V power source. Buyers seeking wireless operation or plug-and-play USB compatibility should look elsewhere.

Pros & Cons

Pros

• Very high gain with low noise thanks to the integrated preamp IC, improving capture of quiet sounds.
• Small 5mm mic element that is easy to conceal in professional installations.
• Complete kit with power supply and 50ft cable lets installers set up without sourcing extra parts.

Cons

• Requires a 12V DC power source and AV input device, so it is not a portable or wireless solution.

Specifications

Brand	VideoSecu
Microphone element diameter	Approximately 5mm
Preamp	Built-in on board IC preamplifier with auto level adjustment
Power supply	12V DC 500mA included
Cable	50ft video power cable included
Compatible devices	Devices that accept AV input such as TV, VCR, DVR

Our Verdict

The VideoSecu Microphone preamp kit is a practical, good-value option for anyone adding high-sensitivity audio to fixed AV systems. Its on-board preamp and auto level adjustment make faint sounds usable, and the tiny mic plus included power and cable mean installations are straightforward. Professionals and installers who need covert, boosted audio will find this a reliable tool; those needing battery operation or wireless audio should consider other solutions.

Frequently Asked Questions

Will this work with my DVR?
Answer. Yes, it is designed for devices that accept AV input such as DVRs, provided the recorder has an audio input and supports an externally powered microphone.

Is the microphone element easy to hide?
Answer. Yes, the microphone is about 5mm in diameter and can be concealed in fixtures or enclosures for discreet placement.

Does it need a separate amplifier?
Answer. No, the kit includes an on-board preamp IC to boost low microphone outputs and a 12V DC 500mA power supply to run the microphone circuit.