USB Desktop Microphone Sangat cocok untuk Module Microphone Raspberry Pi Product parameters: 1. The sensitivity: - 47 db + 4 db 2. Lower sensitivity: - 3 db at 1.5 V 3. Working voltage: 4.5 V 4. The frequency response: 100 to 16 KHZ 5. SNR: wining - 67 db 6. Line length: 0.7 to 0.9 M