Features:Stable performance, strong power, long service time.The higher the voltage, the better the vibration, but it's easy to generate heat.Widely used in electric model, dust cleaner, electrical tool, home appliances,Note: Please don't work continuously for a long time at the maximum voltage.Specification:Material : MetalRated Current: 50mARated Voltage: DC 3VVoltage Range: 3V-12000RPM, 3.7V-15000RPMTotal Length: 17mm / 0.67 inchBody Size: 6x12mm / 0.24x0.47 inch (D*H)Vibrating Wheel Size: 5x3mm (D*H)Package Content:10 x Vibration Motor