Fawoonu M31 USB Microphone

Specifications: Model: M31 Size of Host Machine: 140x140x42mm Weight of Host Machine: 106g Sampling frequency of speaker: 24Khz Sampling frequency of microphone: 16Khz Speaker: 4Ω 8W Operating voltage: 4.5V ~ 5.5V Microphone Sensitivity: -34 +- 3 dB Frequency: 100 ~ 10,000 Hz Output impedance: ≤2.2KΩ SNR: ≥58dB Max SPL: 115dB Max Current Consumption: ≤0.5mA Echo cancellation: Max: 256ms Reverberation time: <0.5S Noise: <48dBA o processing: AECAGCNRNLPALC System : Windows8windows7vistaxp2000Mac10.5Android Package List: 1 x Microphone 1 x USB Cable