• CPU built-in audio sampling module, low interference from the hardware circuit, audio signal has low noise.
• Smart audio crack protection, auto low microphone sensitivity to meet the requirements of the high volume to reduce audio crack.
• Adopts wide dynamic range processing technology for the valid audio signal, balances the processing of high audio and low audio.
• High-sensitivity microphone, omni-directional pickup, clear audio, high anti-inference capability, Noise reduction via the algorithm to enhance signal definition.
• Auto gain and compensate the human voice frequency. Exaggerates the human voice in environment of lots of noise and can present the clear voice.
• It can effectively reduce the indoor reverberation resulting from the reflection via the wall, ceiling.
• It supports screaming control function and can greatly enhance the speaker effect when the pickup and the loud speaker are in the same environment.
• Built-in high-speed CPU, real-time processing audio signal, low latency.
• Built-in lighting protection, power two-polarity misconnection protection, static electricity protection.
• CE, FCC compliance.
• Pickup Range 1 square meter–150 square meters (10.76sq.ft–1614.59 sq.ft).
• Audio Transmission Distance 3000 m (9842.52 ft).
• Frequency Response 20 Hz–20 kHz.
• Sensitivity -38 dB.
• SNR 85 dB (1 m 40 dB audio source SPL) 52 dB(10 m 40 dB audio source SPL)1 kHz at 1 Pa
• Pointing Features Omni-directional
• Gain Adjustment 0 VPP–4.6 VPP adjustable (75 dB sound pressure 1 kHz)
• Dynamic Range 106 dB (1 kHz at Max dB SPL).
• Distortion ?0.3% (74 dB sound pressure, A weighted).
• Max. Sound Pressure 120 dB SPL (1 KHz,THD 1%).
• Output Resistance 25 ? non-balanced.
• Output Signal Amplitude 2.5 VPP/-25 dB.
• Microphone High-fidelity micro electromechanical system (MEMS) silicon microphone.
• Signal Processing Digital NR, reverberation, human voice enhancement, screaming control.
• Protection 8kV Air,6kV contact ESD lightening protection, power polarity misconnection protection.
• Drive Capability Built-in preamplifier circuit.
• Connection Mode 3 lead wire: (power, audio, public GRD).
• Transmission Cable 3-Pin mm² RVVP shielded cable.
• Power Supply 12V DC (9V-18V).
• Power Consumption 0.72W (60mA).
• Operating Temperature -20 °C to +60 °C (-4 °F to +140 °F).
• Operating Humidity ?95%RH.
• Storage Temperature 0°C to +40°C (+32°F to +104°F).
• Storage Humidity ?95%RH.