The FM4158S with Audio Power OpAmps SOP-8 RoHS is a dual low-noise operational amplifier manufactured by Fuman. It features low-noise operation, high slew rate, wide bandwidth, and low distortion. It is ideal for a range of applications, including high quality audio amplifier, preamplifier, post amplifier, and signal processing functions. The device is designed in an 8-pin SOP package, and is compliant with RoHS standards, which require it to be free of hazardous substances such as lead, mercury, and cadmium.