A hi-fi system is a type of audio equipment that is designed to produce high-fidelity sound. It typically consists of two or more speakers, an amplifier, and a source such as a CD player, turntable, or radio. The term 'hi-fi' is an abbreviation for 'high fidelity, ' which refers to the system's ability to accurately reproduce sound. The term 'STEREO' is derived from the Greek word 'stereos, ' meaning 'SOLID.' STEREO systems are capable of producing sound in two channels, allowing for a more immersive listening experience.