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Guangzhou Sizheng Electronics Co., Ltd
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Guangzhou Sizheng Electronics Co., Ltd

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    3327257802@qq.com

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    2nd Floor, Building B, Youbao Industrial Park, No. 17 Xiangshan Road, Science City, Huangpu Development Zone, Guangzhou City

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COTT-QD30/S high-definition pinhole microphone

NegotiableUpdate on 01/09
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Overview
COTT-QD30/S is designed for synchronous recording of * industry * systems, with a pinhole design and concealed installation. Advanced resin material "honeycomb sound collection" design, * eliminates "hissing" electronic noise. BOURNS large gold-plated diaphragm microphone head, high fidelity, high sensitivity, high bandwidth, and low noise within 5-50 square meters. The microphone adopts a 0.8mm pinhole design, and its internal resonant cavity has been accurately calculated for clearer sound reception.
Product Details


COTT- QD30



COTT- QD30S

COTT-QD30/S high-definition pinhole microphoneProduct Introduction

1: COTT-QD30/S is designed for synchronous recording of * industry * systems, with a pinhole design and concealed installation.

2: Advanced resin material "honeycomb sound collection" design, * eliminates "hissing" electronic noise.

3: BOURNS large gold-plated diaphragm microphone head, high fidelity, high sensitivity, high bandwidth, and low noise within 5-50 square meters.

4: The microphone adopts a 0.8mm pinhole design, and its internal resonant cavity has been accurately calculated for clearer sound reception.

5: Dolby omnidirectional logic surround sound standard design, built-in high-speed voice DSP processing unit, two-stage dynamic noise reduction processing.

6: Built in AGC noise reduction signal processing circuit, the concave cavity effectively reduces severe echoes in open rooms.

7: Built in ALC level control circuit, automatically adjusts the high and low intensity of voice and instantaneous voltage and current surges.

8: Ultra long audio signal transmission technology, using RVVP3 × 0.5mm2 shielded cable to transmit 3 kilometers without distortion

9: Integrated professional pre audio amplification circuit, directly driving active speakers, hard disk recorders, headphones, and more.

10: Obtained the certificate of the People's Republic of China.

11: Obtained the copyright of computer software in the People's Republic of China.

12: According to the EU Environmental ROHS Directive 2002/95/EC, construction standards have been established.

13: Through the EU CE standards and the construction specifications for the synchronized audio and video recording system of the Supreme People's Procuratorate.

14: Tested according to relevant standards of the Federal Communications Commission (FCC) and corresponding system construction specifications.

15: Tested by the Security and Police Electronic Product Quality Testing Center.

16: Certified according to the IAF UKAS quality management system standard ISO9001:2008.

COTT-QD30/S high-definition pinhole microphoneProduct Parameters

project Performance indicators of microphone
Sound pickup area 5-50 square meters (adjustable)
Audio transmission distance 3000 meters
frequency response 20Hz~20KHz
Sensitivity -40dB
Signal to noise ratio 70dB (1-meter 40dB audio source) 50dB (10 meter 40dB audio source) 1KHz
pointing feature omnidirectional
dynamic range 104dB (1KHz at Max dB SPL)
Greatly withstand sound pressure 120dB SPL(1KHz,THD 1%)
output impedance 600-1000 ohms unbalanced
Output signal amplitude 2.5Vpp/-25dB
microphone BOURNS large gold-plated vibrating diaphragm microphone head
Number of microphone heads Single microphone head
signal processing circuit DSP digital noise reduction, AGC automatic gain control, ALC automatic level control
protection circuit Lightning protection, power polarity reversal protection, ESD protection
connection method 3 leads (red power positive, white audio positive, black common ground)
Transmission cable RVVP3 × 0.5mm2 shielded cable
power supply voltage DC voltage regulation DC10V~18V (* use 12V, greater than 500 meters * 15V)
operating current 50mA
ambient temperature -25℃~70℃
color white
Shell material Advanced resin PVC+spray diffusion coating
Overall dimensions 63 mm×23mm
weight 25 grams
Place of Origin China, Guangzhou
Supply situation In stock, sample testing available
meet the standard Passed EU CE, ROHS, US FCC certification, quality system *, * certificate,
*Copyright of computer software and construction standards for the synchronized audio and video recording system of the Supreme People's Procuratorate.