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H Series High-definition Noise Cancelling Microphone for Synchronous Monitoring and Recording in the Public Security, Procuratorial, Judicial, and Educational IndustriesNegotiableMOQ: 1 Combo
1. The advanced acoustic pickup is designed specifically for synchronous monitoring and recording in the public security, procuratorial, judicial, and educational industries.
2. Metal appearance structure. Environmental noise elimination technology, adaptive environmental noise elimination technology.
3. Adopting a high-sensitivity fully directional gold-plated microphone head, with a sensitivity range of 10-150 square meters, it is noise free, clear, and natural.
4. Adaptive dynamic noise reduction processing, built-in high-speed DSP digital signal processor.
5. Equipped with a unique electronic noise dynamic closed-loop suppression circuit, it completely eliminates the "hissing" electronic noise.
6. Specialized HS potentiometer, self volume adjustment, snap on type, fully technical structure, suitable for installation in various environments.
7. Built in lightning protection, power polarity reversal protection, and electrostatic protection
8. Ultra long audio signal transmission technology, using RVVP3 × 0.5 mm2 shielded cable to transmit 3 kilometers without distortion.
Working in an ultra high ambient temperature range of 9-40 ℃ to 75 ℃, ensuring high-quality recording performance in the backend.
10. Integrated professional audio processor, which can directly drive active speakers, hard disk recorders, tape recorders, etc
11. Passed the EU Environmental ROHS Directive 2002/95/EC construction standards.
12. Passed the EU CE standards and the construction specifications for the highest level synchronous audio and video recording system.
13. Passed the relevant standards testing and system construction specifications of the Federal Communications Commission (FCC) in the United States.
14. Certified according to the international quality management system standard ISO9001.
Project microphone parameters
Pick up range 10-150 square meters (adjustable)
Audio transmission distance of 3000 meters
Sensitivity -30dB
Frequency response 20Hz~20kHz
Directional Characteristics Omnidirectional
Signal to noise ratio 80dB (1m 40dB sound source SPL) 50dB (10m 40dB sound source SPL) 1KHz at 1 Pa
Dynamic range 104dB (1KHz at Max dB SPL)
Maximum sound pressure 120dB SPL (1KHz, THD 1%)
Output impedance 600 ohms unbalanced
Output signal amplitude of 2.5Vpp/-25dB
Large diaphragm gold-plated microphone head
Automatic level control of signal processing circuit ALC, ANC environmental noise cancellation technology
Connection method: 3 leads (power, audio, common ground)
Transmission cable 3-core 0.5mm ² RVVP shielded cable
Power supply current 30mA
Electromagnetic compatibility complies with GB 9254-2008
Reliability index MTNF ≥ 80000 hours
Shell material: aluminum alloy+mesh cover+base buckle
Dimensions 29mm × Φ 78mm
Weight 70 grams
Supply situation in stock
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