Power supply mode The product can be installed with 4 AA batteries or use USB power supply (when the two methods are used at the same time, USB power supply will be given priority). Turn on the water pump manually: In bright screen mode (showing AUTO on the right), long press the "SET" button to turn on the manual mode. The pump will stop automatically after 5 minutes after it is turned on. Program setting: the program will be automatically saved if no operation is performed within 5 seconds during the setting process. When the screen is on, press the "SET" key "HOW LONG" to set the beating (watering time). After the number is the unit (SEC seconds / MIN minutes) Press "+/-" to adjust the parameters and long press for quick adjustment. "HOW LONG" watering time setting is completed, press "SET" key "HOW OFTEN" jump to set the interval time. After the number is the unit (/hour DAY/day), press "+/-" to adjust the parameters, long press to adjust quickly. Start watering and wait for 5 seconds. The machine will automatically save the program or press the "SET button twice, then it will water once, and then it will run according to the set program. When you need to specify the time for watering, press the "SET" key to set the "DELAY" (delay) after how long. After the first watering unit (/hour) is set, press the set button to save or wait for 5 seconds to automatically save. Name: Intelligent drip irrigation system Size: height 7.2cm/2.83in, diameter 9cm/3.54in Working voltage: 3.7V Current: 1A Power: 3.7V Flow rate: 0.85L/min : 3 meters Suction range: 2 meters Water pipe size: 4/7 inch Colour: white Material: ABS Package Contents: 1 * Host 10 * Drop 10 * Tee 1 * Water pipe 10m 1 * filter 1 * USB data cable 1 * English manual Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.