Feature: 1. The microphone module has a 24‑bit digital I2S interface with high‑precision data, and the output performance is stable. 2. With flat broadband frequency response and high signal‑to‑noise ratio, it can produce high‑definition natural sound. 3. INMP441 is a high-performance, low-power, digital output omnidirectional MEMS microphone with a bottom port. 4. With MEMS sensor, signal conditioning, analog‑to‑digital converter, anti‑aliasing filter, power management and I2S interface. 5. The microphone outputs the signal on the left channel when the level is low, and outputs the signal on the right channel when the level is high. Specification: Item Type: Microphone Module Interface Definition: SCK: Serial data clock of I2S interface WS: Select serial data for I2S interface L/R: Left/right channel selection When set to low level, the microphone outputs signals on the left channel When set to high level, the microphone outputs the signal on the right channel SD: Serial data output from I2S interface VCC: Input power, 1.8V-3.3V GND: Power supply. Package List: 1 x Module2 x Pin