The GMI9745P-42db with Electret Condenser Microphone Through Hole RoHS manufactured by INGHAi is an integrated, high-sensitivity audio sensor designed to produce a balanced output signal when exposed to signal be it acoustic, mechanical, or electrical. It features an omnidirectional pattern and a frequency response range of 600 Hz to 18 kHz. It is built with an integrated preamplifier and low-noise filter, and is RoHS compliant. It is made of plastic construction and comes in a robust through-hole package, allowing for easy integration. It is suitable for a variety of applications, including automotive, phone, and video conferencing systems.