The BOSS DR-5 Dr. Rhythm Drum Machine is a versatile and compact musical instrument that is perfect for any aspiring musician. With features such as 400 drum and percussion sounds, 50 user-programmable drum kits, and an easy-to-use interface, the DR-5 is an excellent choice for both beginners and experienced musicians. This listing also includes an aftermarket power supply, ensuring that you have everything you need to get started right away.