This air pump is well built to produce a good volume of air quietly with its low power consumption. Makes your aquarium oxygen levels high and helps keep your fish healthy. Features quiet, compact size and lightweight. Caution: This product only included one oxygen pump,Charging Head, Wind Pipe, Bubble Stone, USB Lineare not included._x000D__x000D_Feature_x000D__x000D_- Color:White._x000D_- Material: ABS._x000D_- Size: 8.5 x 5.5 x 4.5cm._x000D_-Ultra Silent: Using high-tech special internal muffler design, really ultra silent, which will not disturb your sleep, work or the inhabitants in the aquarium._x000D_- USB Power: Support USB charging and home directly connect._x000D_- Wide Compatibility: This oxygen are great for small and medium fish tanks and fits all kinds of aquarium creatures._x000D_- Operating Voltage: Applicable to AC in the input, not connected to AC power failure or products in the state, battery power, full battery can work continuously many hours._x000D_- Excellent Design: Compact and mini design, lightweight to carry. Superb air floe power, reliable, durable, safe and silent.Packing list:1 x Oxygen Pump