Brand newOperates voltage: 2.5 â 4.0 VDCRated voltage: 3.0 VDCRated rotor speed: 12000RPMRated current: 70mA MaxStarting current: 90mA MaxStarting voltage: 2.3V DC MaxInsulation resistance:10Mohm MinDirection of rotation: arbitrary directionCan be operated in either direction simply reverse power supply polarityDimensions: 4mm x 8mm(D*H)Made for vibration alerts in cell phones and pagersComes with a removable rubber boot with two leads