Features: The intellligent external control digital display variable frequency fishtank pump adopts intelligent control technology, which can automatically adjust the water flow and frequency according to the requirements set by users, providing accurate operation effect. Our pump adopts frequency conversion technology, which can intelligently adjust power according to actual demand, improve energy utilization efficiency and reduce energy consumption. Equipped digital display screen, which can display parameters such as water flow intensity and frequency in real time, so that users can intuitively understand the working state. Our water pump runs quietly, so your house can have a quiet environment. Suitable for people who love fish farming and aquarium viewing. They can use this product to clean and maintain the water quality of aquarium and create a good living environment. Specifications: Material: ABS Size: As Shown Type: 3 Kinds Optional Standard: 3 Kinds Optional Package Includes: 1x Water Pump note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color of the item.