Listen to the - we now have a super small breakthrough board ICS43434 I2MEMS microphone. Just like "classic" element microphones, MEMS MIC can detect sound and convert it into voltage, but they are smaller and thinner. This microphone isn't even analog, it's purely digital. The I2S is a small, low-cost MEMS MIC with a range of about 50Hz-15kHz, suitable for all audio recording/detection. The chip has a built-in low-pass filter that cuts the frequency above 24kHz. For many microcontrollers, adding audio input is easy with one of our analog microphone breakthroughs. But as you get to bigger and better microcontrollers and microcomputers, you'll find that you don't always have analog inputs, or maybe you want to avoid the noise that seeps in with analog microphone systems. Once past the 8-bit micros, you'll usually find that I2 can take the peripheral digital audio data in! That's where the I2S microphone breaks through the featured ICS43434 in. Instead of the analog output, there are three digital pins: clock, Data, and Left/Right (Word Select) clock. When connected to a microcontroller/computer, the "I2S controller" drive the clock and word select pins at high frequencies and read data from the microphone. No analog conversion required! Sensitivity: 26 dB 1dB High performance mode SNR: 65 Low power mode SNR: 64 High performance mode current consumption: 490 A Low power mode Current consumption: 230A Mike Wind Pressure Level Overload Point (): 120 dB SPL High performance mode sampling rate: 23 - 51.6kHz Low power mode sampling rate: 6.25 - 18.75 kHz Due to different product batches, the appearance , which does not affect the use Color: Black Material: Pc Package Contents: 2 x Sensor module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.