3.5MM Microphone HP-DK30

  • Pickup area: Radius 2M
  • Sensitivity: -46dB (0dB=1V/Pa 1KHZ)
  • Frequency respond: 20~20kHZ
  • Output Impedance: 600ΩUnbalanced
  • SNR:60dB (1M40 dB sound source) 30dB (10M 40 dB sound source) 1KHz at 1 Pa
  • Directivity characteristics:Omnidirectional
  • Noise suppression: Dynamic noise reduction margin 5dB
  • Dynamic range: 104dB (1KHz at Max dB SPL)
  • MIC: Imported large diaphragm anti-interference omnidirectional microphone
  • Output margin: 2.5Vpp
  • Max withstand sound pressure: 120dB SPL (1KHz,THD 1%)
  • Working temperature: -20℃~+70℃
  • Shell feature: ABS fireproof material,black fuel injection,metal mesh layer
  • Product size: 51*51mmFlat square
  • Wiring method: 3.5mm audio headphone male
  • Waterproof characteristics: Indoor moisture proof
  • Color: Black

Product Overview

1. The best design principle of change audio to electric energy signal directly.
2. Can show the characteristics of "original sound reproduction".
3. Extremely broad frequency respond.
4. Having high sensitivity characteristics.
5. Fast transient response characteristics.
6. Features with ultra-low touch noise.
7. Shatterproof and impact-resistant.
8. Small size and light weight.


Conference room microphone is called the meeting microphone and some people call it an omnidirectional microphone. The conference room microphone is a portable conference phone product that not only enables high-quality Internet teleconferencing over the Internet through a computer interface, but also a speakerphone and microphone hands-free calling device for wireless mobile phones through the headphone jack for high quality wireless mobile conference calls. Its style is classic and easy to carry. The microphone pickup direction can be selected according to the conference scene, which is suitable for use in conference rooms and offices.

Most conference room mics on the market today also use electret microphones. The meeting microphone not only collects sound but also outputs sound.

Because the conference room mic has both sound input and output functions, its circuit design must have an anti-echo (self-excitation, howling) circuit. Therefore, the most important reference point for judging the quality of a conference room mic is its ability to resist the echo.

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