Thank you for viewing. ACOUSTIC REVIVE Outlet Stabilizer CS-2 (likely model). By inserting this into an unused outlet, the internal vibration damping structure suppresses resonance and noise in the conductive fittings, aiming to improve the S/N ratio and sound quality of the entire system.  This is a used item that was working. The aluminum casing has no major scratches or dents and is in relatively clean condition. There is some clouding/discoloration on the power plug (please check the photos). Original box and accessories are not included. This is a sale of the main unit only. ※ The model number is not visible on the main unit. Based on the shape and size, it is believed to be the "CS-2," but we cannot guarantee the exact model number, so please purchase only if you can confirm the photos and make your own judgment. Shipping will be done with careful cushioning, and will be sent via Yu-Yu / Rakuraku Mercari anonymous delivery. We ask for purchases from those who understand used audio accessories. If you have any questions, please contact us in the comments section before purchasing.