Shopping for Mi Xiaomi Mi Portable Electric Air Compressor DZN4006GL in stores can be confusing, but HomeWagon makes it easy. Xiaomi Mi Portable Air Pump. Proper use: Universal, Pump pressure: 10.3 bar, Power source type: Battery, Input voltage: 5 V, Input current: 2 A. Width: 71 mm, Depth: 45.3 mm, Height: 124 mm. Package type: Box