The GMI6050P-52db with Electret Condenser Microphone Through Hole,P=1.9mm RoHS manufactured by INGHAi is an electromagnetic transducer that converts sound into an electrical signal. It is a preamplified, omnidirectional, ultra-low noise microphone designed for maximum sensitivity and signal-to-noise ratio in applications such as automotive cabin audio. It has a frequency response of 50 - 16 kHz, has a sensitivity of -52dB ±3dB, and an impedance of 2.2K ohm. It features a low noise amplifier to reduce background noise and is RoHS complaint, meaning it complies with the Reduction of Hazardous Substances ordinance, making it safe to use in a variety of applications.