Feature:1. The 2.5‑watt pump is energy‑saving and the rate is 2L/min, which is very suitable for small fish tanks, and high quality, durable, it has good impact resistance and abrasion resistance.2. Well‑structured pump, low power consumption, can quietly generate large air, make the oxygen in the aquarium high, which helps keep fish healthy.3. The silent mini aquarium pump is different from the traditional pump, which adopts advanced compression system and shock absorption system, multi‑stage silencer design, extremely low noise.4. The rubber feet are designed to prevent slip and vibration, increase the release of oxygen in the aquarium, accelerate the decomposition of harmful substances in the water, and let the fish live freely in the water.5. The oxygen pump with compact design, light weight, quiet, and long service life, also safe and convenient to use, it use environmental protection design, compressed and pure it.Specification:Item Type: Oxygen PumpMaterial: PlasticCable length: Approx. 75cm/29.5in with Plug (There Is An Error of 0.5-1.5cm/0.2-0.6in)Maximum Pressure: 0.018MPaAir Output: 1.8L/min Package List:1 x DB-9001 (Bare Pump)Note:1. The pump must be placed higher than the fish tank. If it is lower than the fish tank, a one‑way guide valve must be installed.2. This product cannot be placed in water. It is recommended to put a soft cushion under the product to reduce noise and vibration.3. Frequent cleaning and replacement of pipes and stones can obtain the maximum and extend the life of the pump. 4. When the voltage is too low to work normally, the current voltage should be adjusted to the rated voltage so that the product can be used normally.