Features:  Intelligent Automatic Watering: With this automatic irrigation system set, you no longer have to water manually, saving you time and effort.  Wide Ranges of Applications: This automatic irrigation system set is suitable for watering office plants, balcony flowers, flowerbed plants and potted plants.  No Need Faucets: This device can be used with most water containers such as bucket, big water bottle and so on.  The drop arrows design can be accurately watered compared to manual watering, making full use and saving water.  Easy Setting: The operating panel is easy to use, you can finish the setting quickly, you can set the watering times and interval time by your needs.    Specifications:  Material: plastics  Type: black-10 pots, white-10 pots, black-20 pots, white-20 pots (optional)  Power: 4 * AA batteries (NOT INCLUDED)  Power: 3.7W  Flow rate: 0.85L/ min  Lift: 3.0 meters  Suction ranges: 2 meters  Water pipes size: 4/7  Watering time: 1-99s 2-45min  Interval time: 1-23hours 1-30 Day  Package size: 130 * 110 * 50mm / 5.1 * 4.3 * 2.0in  Pacakege weight:  10pots: 550g / 1.2lb  20pots: 710g / 1.6lb    10pots Packing list:  1 * Controller  1 * Hose (10M)  10 * Drop Arrows  10 * Three Way Tee    OR    20pots Packing list:  1 * Controller  1 * Hose (15M)  20 * Drop Arrows  20 * Three Way Tee