Portable Power: High-power 12V 2Ah battery allows for extensive runtime and is tested to withstand the most aggressive applications; Compatible with Bosch 12V System Fully Variable Speed: The fully variable speed control from 5.000-35.000 RPM allows for maximum precision and control in many different applications Comfort: Improved ergonomics with better button positioning and comfortable rubber soft grip in gipping area’s for easy handling and superior control EZ Twist: With EZ-Twist Nose Cap for faster and easier accessory changes, perfect to use with Dremel's high performance, durable MAX accessories Guarantee: 2 years guarantee standard; get 1 year extra when registering your Dremel tool on MyDremel