The Green Lion JetPro Blower 2 is the best tool for cleaning your electronics. This device has four different gears, each stronger than the last one. This blower can operate for up to two hours with each charge and does so with 130000 rotations per minute. If you are looking for a product to clean your electronic gadgets, even sensitive electronics such as motherboards, look no further than The Green Lion JetPro Blower 2.Specification Endurance: 1 Gear-2 Hours, 2 Gear-1 Hour, 3 Gear-30 Minutes, 4 Gear-12 Minutes Charging Voltage / Current: 5V/2A Battery Capacity: 2500mAh*2 Operating Voltage: 7.4V Noise Level: 56db-81db Power: 150W Features 130000 RPM 4 Gear