High-efficiency aquarium air pump: This mini USB air pump, despite its compact size, provides a stable oxygen supply with an airflow of 210 liters per hour, suitable for small fish tanks and aquariums. Portable and versatile: Weighing only 150 grams, this small aquarium air pump is easy to carry and install. Built-in aluminum alloy clips ensure a secure fit on various surfaces, making it ideal for fish tanks, aquariums, and even outdoor activities such as fishing or transporting fish. USB-powered for convenience and flexibility: This USB aquarium air pump comes with a 100 cm long cable, compatible with power banks, phone chargers, car adapters, and laptops. Plug-and-play functionality ensures its portability, allowing for easy use almost anywhere. Energy-saving mini air pump: This air pump operates with only 1 watt of power, providing extremely high efficiency and a maximum flow of 210 liters per hour. When connected to a 10000mAh power bank, it can operate continuously for up to 50 hours, minimizing energy consumption while ensuring long-lasting performance. Wide compatibility: This air pump has stable performance, making it ideal for oxygenating small to medium-sized aquariums. It is also suitable for aeration or spray decoration in various advanced aquariums and aquaculture. Portable: Compact, lightweight, easy to carry, and low power, it is suitable for outdoor fishing, small to medium-sized aquariums, and can be used in both fresh and saltwater. The product includes: 1 air pump, 1 USB mini air pump cable, 1 air stone, 1 silicone hose, 1 hanging bracket.