Features: The for case is made of high quality ZL102 Aluminum alloy with radiator,heat-dissipation is more effective Driven by electric magnetic motor,adopt straight-line reciprocal motion to produce air and more reasonable in structure. Adopt SF new-type wearing-resistant material for the cylinder and piston which is of low power consumption oilless design,the compressed air is purified. Constant remperature and pressure operation to ensure reliable performance Specifications: Power: 25W Air Flow: 40L/min Plug type: US Plug Voltage: 220-240V (NOTE: This item is 220-240V, only applies to the voltage of 220-250-V country, does not apply to the US and Canada, 110V voltage country, please confirm clear before buying, thank you.) Material: Aluminum alloy Size: app.13.5cmx8cmx8cm/5.31'x3.15'x3.15' Color: Silver+Black Note: 1.Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package includes: 1 x Air Compressor 1 x Short Tube 1 x Outlet Adapter 1 x 6-hole oxygen shunt