Features： 1、LOW VOLTAGE: The inside of the mini air pump adopts safe low voltage to ensure user's safety, and there is no need to worry about electric leakage and injury during operation. 2、RUNNING QUIETLY: The noise generated when the mini air pump is running is very small, and it also gives you a quiet working environment. 3、STABLE PERFORMANCE: The mini air pump is equipped with a pressure switch and a relief valve to ensure the pump away from damage and control the normal operation of the pump. 4、CORROSION RESISTANCE: The mini air pump uses engineering plastics with good performance as the shell material, which has good corrosion resistance and durability. 5、EASY TO DISASSEMBLE: The installation and disassembly of the mini air pump are very convenient and simple, which is convenient for users to use. Specification： Item Type: Micro Air Pump Material: Engineering plastics Air Nozzle Diameter: Approx. 5mm / 0.2in Vacuum Flow: 2.5-8.0LPM Maximum Vacuum: Less than or equal to -60Kpa (-450mmHg) Maximum Positive Pressure: Greater than or equal to 100Kpa (750mmHg) Noise: Less than or equal to 65db (30cm away) Life Test: Greater than or equal to 500hours (continuous) Package List： 1 x Micro Air Pump