Microphone size: medium 6.0x 5.0mm high sensitivity anti-interference microphone coreSensitivity: -32dB+1dBDirectionality: omnidirectionalImpedance: s2.2k2Working voltage: 2.0VFrequency range: 100-16kHzSignal to noise ratio: greater than 60dBPlug diameter: 3.5mmWire: APS shielded wire