Patented EZ twist nose cap for quick and easy accessory changes without the need of a wrench Variable speeds for seamlessly adjusting from 8, 000 RPM to 25, 000 RPM for optimal control and maneuverability Cordless design offers the freedom to take it anywhere 4-volt Li-Ion battery recharges using convenient USB charger for anytime-readiness LED battery life indicator illuminates when battery needs recharging Portable and lightweight with 360° soft grip material that allows for comfort and precise control Compatible with most Dremel accessories and a selection of attachments Includes the 106 1⁄16 in. engraving cutter