The GMA4030H11-F26 with Electret Condenser Microphone SMD, 4.0x3.0x1.1mm RoHS is a RoHS compliant microphone manufactured by INGHAi. It is a small, surface-mount microphone that measures 4.0 x 3.0 x 1.1mm, and has an electret-condenser design. It is used in a wide variety of applications, such as voice-recognition, telephones and headsets. The microphone delivers a high-fidelity sound quality, and has a low pick-up threshold for accurate sound recording. It also has an extended frequency response and low distortion. Its small size makes it well-suited for medical and engineering applications, as well as for consumer electronics.