·Rechargeable 3.7V/280mAh lithium battery:Rechargeable via supplied compatible USB connector at any place, more conveniente for your charging. Full charging time is about 1 hours and can be used about 90 minutes. ·Going 3 Rotation Speed3: 3 Rotation Speed controled by one button - 20000////15000////10000 rpm, shows clearly with three red light on the tool body. It can meet different tasks against your needs. ·A variety of drill bits can be matched:Choose different accessories to correspond to various needs ·Multi-scene work:which can be used to do all kinds of home projects or crafting jobs, such as grinding, cutting, sanding, carving, polishing, drilling and more. Buy at ease!