Usage:Home DIY Power Source:DC Weight:300 Rated Voltage:4.8V No-Load Speed:15000rpm Max. Drilling Diameter:3.2mm Application:DIY Drill Type:Mini Drill Origin:Mainland China Certification:CE Rated Input Power:30W Instructions for use The product needs to be plugged in for use. The product does not come with batteries and cannot be recharged USB plug-in use USB plug-in use, no charging, need to be plugged in when using, can be used with power bank This power tool come with 5 collet sizes（0.8mm,1mm,1.6mm,2.3mm.3.2mm), to fits different suitable accessories and it is easily changed. 【3 Rotation Speed】 3 Rotation Speed controled by one button - 5000/10000/15000 rpm, shows clearly with three red light on the tool body. It can meet different tasks against your 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!