High-Sensitivity Professional Audio Surveillance Security System for Security.

Sensitive audio surveillance microphone with a wide range of 150 square meters for CCTV security.

• Designed for surveillance and recording applications in the normal range, with the widest surveillance range reaching 150 square meters.
• Clear sound, low noise, high fidelity, suitable for banks, examination rooms, shopping malls, and more.
• Integrated reverse power protection circuit, low power consumption, wide voltage range, safe and reliable to use.
• Compact design, small size, plug and play.
• The casing is made of plastic, easy to clean.
• Audio surveillance range: 5-150 square meters, adjustable volume.
• Frequency range: 100 – 20KHz.
• Output impedance: 600 ohms.
• Power supply: 12V AC.
• Signal-to-noise ratio: 70 DB.
• 360-degree angle range.
• Sensitivity: -30dB +/-3dB.