Features: USB Rechargeable Oxygen Pump delivers 14 hour continuous runtimes with energy efficient charging, solvings short battery lifves issue in traditional aerator for aquariums and outdoor fishing. Quiet operations power by advanced noise reductions technology ensures peaceful environment for home aquariums or office fishtanks without disruptive vibrations. Great for pet owners, frequent travel, and outdoor fishing enthusiasts searching portable solution for fish tanks or mobile oxygen supply during camping trip. Perfectly for indoor fish tanks, outdoor fishing setups, or travel with its automatic power adjustment base on real time oxygen levels. Upgraded ABS construction withstands outdoor use while maintaining portability, ensuring great aeration for underwater pet in any environment. Specifications: Component: ABS Product Dimension: Approx. 11x4x7.65cm/4.33x1.57x3.01inch Power: 2W Voltages: DC5V Battery Capacity 2600MA Working Pressure: 18Kpa Exhaust Volumes: 1500MLx2/mins Package Includes: 1PC USB Rechageable Oxygen air pumps 1PC Air Tubing 1PC Air Stone note: Please allow 1-2cm error due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color the item.