Features: Input USB5V2A, water pumping speed 4L/min; Vertical height cannot exceed 2meters, stop using every 30mins, restart after 5 minutes; USB power supply, convenient and safe; It is a 365 water pump; It uses USB5V2A power supply and can use power bank,5V adapter,mobile phone charger and so on. Specifications: Material:Plastic Option Type:Water Pump with 1meter Tubing,Water Pump with 3meter Tubing,Water Pump with 5meter Tubing,Water Pump with 10meter Tubing, Input:USB 5V2A Pumping Speed:4L/mins Tube Diameter:Approx.6mm Note: Please allow 1-2cm errors due to manual measurement,please make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1set USB Mini Water Pump