The Logitech Z625 Speaker 400W Z625 Powerful THX Sound System 2.1 with Optical Input is a high-quality home theater speaker system that delivers powerful and immersive sound experience. With a system configuration of 2.1, it includes a subwoofer for enhanced bass response. The speaker system features various audio inputs such as stereo RCA, digital optical, and 3.5mm jack, providing flexibility for different audio sources. Its sleek black design and Logitech branding ensure a reliable and stylish addition to any home entertainment setup. With THX surround sound formats and 400W RMS power, this speaker system delivers an exceptional audio experience for movie nights and music lovers alike.I have a 26 year, 100% Positive response rating. This isn't a listing from some kid living in his parent's basement. I was hoping to be a Cybersecurity expert, but the class moved way too fast for my 60 year old brain (LMAO). This also includes the Logitech Bluetooth Audio Receiver. All items come from a 100% smoke free home. Thanks for looking and I appreciate your time! Stay safe out there.