2 speed motor for extra power and fast smooth cutting New anti-slip soft grip housing Extremely quiet operation Up to 4,400 strokes per minute 4x4 blade drive 25% more blade torque Removeable drive cap for easy maintenance Clipper comes equipped with an UltraEdge™ #10 Blade Works with all UltraEdge™ and CeramicEdge™ blades (sold separately) - the largest selection in the industry Blades also compatible with Oster® Model A-5 and most detachable-type clippers.