Parameters:Type: engraving penSpeed adjustment: three-gear adjustableSpeed: 5000-15000r/minPower supply: USB chargingVoltage: 3.6VColor: black blueSize: 18 * 6 * 4.5cmBattery capacity: 700mahCharging time: 2-3hFull use time: about 1 hour
Package 3 pcs include：1 * Engraving pen1 * USB charging cable1 * InstructionsPackage 15 pcs includes:1 * Engraving pen1 * USB charging cable1 * Wrench1 * Instructions12 * AccessoriesPackage 50 pcs includes:1 * Engraving pen1 * USB charging cable1 * Instructions47 * Grinding head accessories
