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| Use high sensitivity, all directional microphone head and omnidirectional microphone, clear and natural sound; Lightning protection, power polarity transposition protection and electrostatic protection. Scope 10~70 m2 Sensitivity -34±3dB Frequency response 80Hz~16kHz Omni-directional Dynamic range 74dB Max. sustainable sound pressure 110dBSPL (1KHz, THD 1%) Output impedance 600O (non-equilibrium) Output signal amplitude 2.5Vpp/88dBSPL Plated film capacitor microphone head Working voltage DC 12V Working current 40mA Working temperature -30ºC~+70ºC Material Aluminum Dimension Φ40mm×20mm / 48g Manufacturer Website: https://www.dahuasecurity.com/products/productDetail/20687 | ||||||||||||||||||||||||||||||
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