Input voltage: 110V-220V<BR> Output voltage: 30V<BR> Electric current: 0.5A<BR> Handdle High-sp~eed 0-35,000rpm<BR> Voltage：DC 30V<BR> Portable Design (Connectors to your Power Control un~it for Lab polisher,so it is very convenient to use and take)<BR> Installed special ball bearings for super high s~pe~ed (So do not need add oil )<BR> Mo~t~or Handle Instructions for use<BR> Mo~tor Handle for Lab and jewelry beauty wood carving<BR> Very High-powered and quality 0-35,000rpm <BR> Tips size :2.35mm <BR>