The Sony STR-DE997 Dolby Digital FM AM Stereo Receiver is a fully tested and working unit perfect for enhancing your audio experience. This black stereo receiver features a digital tuner, Dolby surround sound formats, and various audio inputs and outputs for a seamless connection. With support for FM and AM modes, along with digital coaxial RCA and headphone jack outputs, this Sony receiver delivers high-quality sound for a truly immersive listening experience. Upgrade your home audio system with this reliable and feature-packed stereo receiver from Sony.