The GMI4013S-2C64DB is an Electret Condenser Microphone SMD RoHS manufactured by INGHAi. It is an ultraminiature, top-port, surface-mounted microphone featuring a specialty-developed transducer capsule and an integrated preamplifier. It is an omnidirectional miniature microphone discretely designed for low distortion and wide frequency response. The device has an operating voltage of 2.0V to 10V, current consumption of 1.5mA, sensitivity of -42dB ±3dB at 1kHz, and a frequency response of about 20Hz~20kHz. It is packaged in a miniature 2.52x2.00mm SMD package and has an adjustable gain level range of 0~63dB. It is RoHS compliant and is suitable for use in mobile phones, Bluetooth headsets, digital recorders, notebook computers, and other consumer electronic products.