This is a waterproof directional monitoring microphone designed for professional outdoor intercom and close-range o pickup applications. It is built to be waterproof, moisture-resistant, dustproof, and features a robust construction for outdoor use. The unit employs a professional directional condenser microphone element, enabling clear o capture within a 5-meter range. Its directional design helps reduce background noise from highways, shopping malls, and pedestrian traffic. The microphone includes a built-in low-frequency noise filtering function that enhances speech clarity. It uses imported noise-processing chips and a waterproof microphone capsule, achieving an IP67 rating, making it resistant to water spray and suitable for temporary submersion up to 2 meters. The unit includes protection against lightning surges, power polarity reversal, and overvoltage. Ideal for various outdoor o pickup environments such as toll booths, train stations, bus systems, and post stations. Specifications: - Size: 36mm (Diameter) x 43mm (H) - Installation: Bolt mount - Wiring length: 80cm - Waterproof rating: IP67 - Pickup coverage: Up to 30 square meters - o transmission distance: Up to 3000 meters - Frequency response: 20Hz - 20kHz - Sensitivity: -48dB - Directivity: Directional - Signal-to-noise ratio: 80dB - Dynamic range: 100dB - Maximum sound pressure level: 120dB - Output impedance: 600 ohms (unbalanced) - Microphone type: Single condenser - Applications: Outdoor intercoms, toll stations, public transit systems - Circuit protection: Surge protection, reverse polarity protection - Connection: Power (DC12V, red), o Output (AOUT, yellow), Ground (GND, black) - Recommended cable: 3x0.5mm² RVVP shielded cable - Operating voltage: DC12V (stabilized) - Operating temperature: -25°C to 70°C - Weight: Approx. 81g - Color: Silver - Material: Metal Note: BNC, RCA connectors, and power supplies are not included. Package Includes: 1 x o Pickup Microphone Note: Lighting and display settings may cause slight color variations between the image and the actual product. Measurement tolerances may vary by 1-3cm.