Introducing the BOSS DR-550 Dr. Rhythm Vintage Drum Machine, a must-have for any music enthusiast. This drum machine boasts a 9-inch diameter and features 12 pads, perfect for creating your own unique beats. The machine is both battery-powered and comes with an AC adaptor, ensuring you can play your drums whenever and wherever you want. The BOSS DR-550 is a top-of-the-line drum machine, made in Japan, and comes with an owner's manual to help you get started. Its features include a variety of sounds and rhythms to choose from, making it perfect for both beginners and professionals alike. This vintage drum machine is a true gem and a great addition to any music collection.