The INGHAi GMI4015P-2C-66db is an Electret Condenser Microphone Through Hole,P=1.4mm RoHS designed to maximize audio performance. It features a molded package that is compatible with surface mount assembly, and operates within a -40 degrees to +85 degrees Celsius temperature range. This microphone is outfitted with an amplifier, polarization voltage and a bias voltage regulator, so it can effectively reduce background noise, distortion and interference, resulting in crystal clear sound quality. It also offers a high signal-to-noise ratio, making booming acoustic levels possible. The GMI4015P-2C-66db comes in a P=1.4mm through-hole design, providing fast and efficient assembly while being RoHS compliant.