Features: 1. USB power: It can be connected to mobile phone plugs, chargers, power banks, car chargers, and computers for charging. 2. Air volume: The aeration pump has 1w power, large air volume, stable air output. It suitable for home use, field fishing, transportation and oxygen supply. 3. Suitable for various occasions: The aeration pump can supply oxygen for shrimp, turtle, crab, fish, shell, etc. 4. Noise reduction and mute technology: The aerator pump adopts a variety of noise reduction technologies, and only the sound of bubbles can be heard. Description: This aquarium oxygen air pump has stable air output, noise reduction and silence, and can provide oxygen for many aquatic organisms. Specifications: Pump size: diameter: 3cm, height: 8cm Power: 1w Noise: silent USB cable: 1m Oxygen tube: 1m Style: single tube Recommendations for use: fish tanks, outdoor transportation, fishing, etc. Package Included: 1 * Oxygen Air Pump Notes: 1. Please allow 0-1 inch error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from real object.