DescriptionHpumps 3502 classical mini item with its top low vibration and prominent features of noiseless effect ,Website:://.heyipump.net,suitable for the small size of fish tankFeaturesSmallest size in the world of air pump Portable like a matchbox, space savingWith black shinning top cover, fashion stylePerfect noiseless designProduct Info.Model            3502             3502AVol/Freq.        220V,50HZ        110V,60HZDimensions       52*44*17         52*44*17Weight           32g              32gNoise            28db             28dbPower            1.6 watt         0.8 wattPressure         12kpa /-10%     10kpa /-10%Flow Rate        210mm /-10%     200mm /-10%Water Depth      600mm            500mmTank Volume      < 50L            < 50LAttachments1pc of Air Tube     Inner Dia. 4mm                    Outer Dia. 6mm                    Length 1000mm1pc of Air Stone    Dia.25mm1 Power Adapter     Based on actual power supply and electric plug type1 Suction Cup:      Detachable