The USB water pump shell is made of high quality reinforced ABS, so it is durable. Electronic components used to change direction, no need to use carbon brush . Liquid use: Water or non-flammable liquid with good fluidity. Maximum flow rate: 300L/H. Unique resin potting, good insulation properties, 100% waterproof, amphibious design. < p>Low noise (less than 35dB), low power consumption, small size and high efficiency. Bottom suction cup design Can be securely fixed in the aquarium without fall,make it more convenient to use Used to create a small fountain landscape, decorate the aquarium, increase oxygen, water circulation, and give your fish a healthier life. Specification: Material: ABS Working voltage: DC 5.5V- 12V Power: 3W Flow: 300L/h Noise: 20000 hours Outlet diameter: 8mm / 0.31in USB cable length: 1.5m / 4.92ft The pump is not adjustable Placed in a rock garden setting, making a small waterfall, decorating the pond, making the yard more comfortable Tip: The