The GMI4015-2C-36db with Electret Condenser Microphone Solder Pads RoHS is a RoHS (Restriction of Hazardous Substances) compliant microphone manufactured by INGHAi. The microphone offers high-performance sensitivity of 36db, has low distortion and a wide dynamic range, and features solder pads for easy installation. It is an omnidirectional microphone with a small form factor and can be used for a wide range of applications, such as speech recognition systems, audio recording, and digital communication. The microphone is also dust-proof and resistant to moisture, making it ideal for use in industrial or outdoor environments.