FeaturesHigh capacity battery worry free battery life The power display is clearly visible 1000mAh large capacity battery can work continuously for about 40 minutes when fully charged LED display gear position and power level are clear at a glance Six speed transmission Different creative scenes gear changes can be seen in real time Efficient heat dissipation and long durability 80W high power high efficiency permanent magnet motor Integrated cooling system with built in fan blades for long term durability SpecificationBrand xiaomiPower TypeRechargeable Lithium Batteryvoltage8Vinput power80W no load rate5000 30000r minweight225 g Appendix52 AccessoriesSpeed6Size194 36mmChuck Specifications2 3mm 3 3mm Package Included 1x 8v Lithium Electric Grinding 52PCS accessories