This part name is NS8002. Function : 3W mono audio power amplifier (High level ShutDown) Package : SOP 8 Pin Type Manufacturers of product is NSIWAY.   Description This IC is a bridged audio power amplifier. When 5V working voltage, maximum drive power is 3W (3ΩBTL negative Load, THD + N <10%). Device application circuit is simple, just a handful of peripheral devices;