The Black & Decker Random Orbit Palm Sander is a corded electric power tool that operates on Lithium-Ion battery technology, although it does not come with a battery included. With a 5-inch disc diameter and a voltage of 120V, this palm sander is ideal for sanding tasks in the workshop or at home. The Black & Decker brand is known for producing quality tools, making this palm sander a reliable option for both professionals and DIY enthusiasts.