The SEN0325 is an Electronic Part manufactured by DF Robot and is comprised of a sound sensor, I2S (Integrated Interchip Sound) interface, 3.3V direct current (VDC) power supply, and an integrated chip (IC) MSM261S4030H0. This particular part is designed for use with Arduino, an open-source electronics platform. The sound sensor can be used to detect sound frequency and other audio data, while the I2S interface provides the means for the device to communicate with other components. The 3.3V DC supply allows the device to operate with minimal power consumption. Lastly, the MSM261S4030H0 integrated chip is designed to support USB audio and Bluetooth 4.0 simultaneously.