Features:- This fully submersible pump is perfect for nano to medium sized aquariums， small ponds， water gardens， and desktop water fountains. - Capable of moving up 80 gallons per hour， also feature adjustable flow rate and is an excellent choice for both freshwater and saltwater aquariums. - The small， yet powerful HJ-311 offers energy savings and versatile placement， while the compact design and low-noise output make the entire NP Series the one-stop pump for all your aquatic needs.- Adjustable Flow Rate- Suitable for Fresh and Saltwater tanks- Powerful Compact Design- Quiet Operation Specifications:- Power Cord: 1.5m- Adjustable Flow rate: Yes; Knob Adjustment- Power: 2.0W- Volt/Freq: 220-240V/50Hz- 2-prong US plugPackage included: 1x Pump2x Fitting connector