This is a waterproof directional monitoring microphone, designed for professional outdoor intercom and close-range audio pickup. It is waterproof, moisture-resistant, dustproof, and built to deliver high-quality sound performance. Equipped with a professional directional condenser microphone element, it provides clear audio capture within 5 meters. The directional design helps reduce ambient noise from highways, shopping malls, and pedestrian traffic. An integrated low-frequency noise filter enhances speech clarity. Features imported noise-processing chips and a waterproof microphone element, rated IP67 for protection against water spray and temporary immersion, suitable for underwater use up to 2 meters. Includes protection against lightning surges, power polarity reversal, and power overloads. Suitable for various outdoor audio pickup applications such as toll stations, train stations, buses, and more. Specifications: - Size: 36mm (Diameter) x 43mm (H) - Installation: Bolt mounting - Cable length: 80cm - Waterproof rating: IP67 - Pickup coverage: 30 square meters - Audio transmission range: 3000 meters - Frequency response: 20–20,000 Hz - Sensitivity: -48dB - Directivity: Omnidirectional - Signal-to-noise ratio: 80dB - Dynamic range: 100dB - Maximum sound pressure level: 120dB - Output impedance: 600 ohms (unbalanced) - Microphone type: Single - Applications: Post booths, toll booths, outdoor intercom systems - Protection: Surge protection, reverse polarity protection - Wiring: Power DC12V (red), Audio Out AOUT (yellow), Ground GND (black) - Transmission cable: 3x0.5mm² RVVP shielded cable - Operating voltage: DC 12V (regulated) - Operating temperature: -25°C to 70°C - Weight: Approximately 81 grams - Color: Silver - Material: Metal Note: BNC, RCA connectors, and power supplies are not included. Package Includes: 1 x Audio Pickup Unit Note: Lighting and display settings may cause slight color variations between the image and the actual item. Measurement tolerance: ±1–3 cm.