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Model: SF-666R
Sensitivity: -30dB+3dB
Directionality: omnidirectional
Impedance: ≤ 2.2K dB
Standard working voltage: 5V
Frequency response: 50HZ-16KHz
Signal to noise ratio:>36dB1. Photos was been shoot based on real products and a professional camera, due to the light and the screen display being different, there will be a certain color, which can not be avoided, it is not a quality problem.