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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 original sound level microphone is designed specifically for the public security, procuratorial, and judicial bidding centers, as well as for high-quality synchronous monitoring and recording in the industry.
2. Adopting the principle of "Temple of Heaven Echo Wall", the 0.8mm pinhole design achieves the best accurate calculation of sound reflection angle.
3. The honeycomb shape can eliminate reflective phase distortion, suppress echo, and provide clear and high-quality audio signal output.
4. Adopting a large gold-plated diaphragm microphone head, with high fidelity, high sensitivity, high bandwidth, and low noise within 5-100 square meters.
5. Built in AGC and DTS noise reduction signal processing technology, automatically adjusting high-intensity sound and instantaneous impact sound.
6. Equipped with HS's unique
7. The microphone is equipped with lightning protection, power polarity reversal protection, and power protection modules.
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 9-25 ℃ to 70 ℃, ensuring high-quality recording performance in the backend.
10. Integrate professional pre audio amplification processing circuits to directly drive active speakers, hard disk recorders, headphones, and more.
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. Tested according to relevant standards of the Federal Communications Commission (FCC) and corresponding system construction specifications.
14. Certified according to the international quality management system standard ISO9001.
Project microphone parameters
Pick up range 5-100 square meters (adjustable)
Audio transmission distance of 3000 meters
Frequency response 20Hz~20kHz
Sensitivity -35dB
Signal to noise ratio 70dB (1-meter 40dB audio source) 40dB (10 meter 40dB audio source) 1KHz at 1 Pa
Directional characteristics: Full directionality
Dynamic range 104dB (1KHz at Max dB SPL)
Maximum sound pressure 120dB SPL (1KHz, THD 1%)
Output impedance 600-1000 ohms unbalanced
Output signal amplitude of 2.5Vpp/-25db
Large gold-plated diaphragm microphone head
Signal processing circuit DTS digital noise reduction, AGC automatic gain, ALC automatic level control
Connection method: 3 leads (red power positive, white audio positive, black common ground)
Transmission cable RVVP3 × 0.5mm2, (please use shielded cable for electromagnetic complex environment)
Power supply voltage DC stabilized voltage DC9V~20V (recommended to use 12V)
Power supply current 30 mA
Color: milky white
Shell material: high-grade resin PVC+sprayed diffuse coating
Dimensions: 32mm × Φ 77mm
Weight 70 grams
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