The Ryobi 18-Volt one+ 10 in. Orbital buffer is a new addition to the Ryobi 18-Volt one+ system. This tool provides up to 2, 500 RPMs for a swirl-free finish while offering the user cordless convenience. With a powerful motor, this buffer maintains optimum performance during extended use. The 18-Volt one+ 10 in. Orbital buffer runs up to 1.5 hours with the 18-Volt one+ lithium+ high capacity battery (p108 sold separately). the Ryobi 18-Volt one+ 10 in. Orbital buffer works with any 18-Volt one+ battery and is a part of the one+ system of over 50 great tools that all work with the same 18-Volt battery platform.