1、M: Manual button: Press and hold the M button to enter the manual mode, which does not affect the time program setting. 2、+/-: button of time in increase and decrease: press and hold it to increase or decrease the time. 3、AUTO: After all settings are made, press AUTO again. At this point, the display shows the current time and the next watering time. 4、SET CLOCK: After pressing this button, you can use the +/- button to set the current specific time. You can press and hold the +/- to automatically add or subtract. 5、START TIME: Press this button to enter the setting to start watering time mode. You can design the required time by long pressing the +/-. Features: M: Manual button: Press and hold the M button to enter the manual mode, which does not affect the time program setting. +/-: button of time in increase and decrease: press and hold it to increase or decrease the time. AUTO: After all settings are made, press AUTO again. At this point, the display shows the current time and the next watering time. SET CLOCK: After pressing this button, you can use the +/- button to set the current specific time. You can press and hold the +/- to automatically add or subtract. START TIME: Press this button to enter the setting to start watering time mode. You can design the required time by long pressing the +/-. OFF: press it to turn off the timer. HOW LONG: Press this button to enter the setting watering time mode. You can design the required time by long pressing the +/-. The time range can only be measured in minutes, such as 1-300 minutes. HOW OFTEN: Press this button to enter the setting watering interval mode, which can be set every 1-7 days, with an interval of 6 hours or 12 hours. RESET: Press this button, the machine will reset again and all setting programs will be cleared. The housing is made from premium ABS plastic, waterproof and available Compatible withlong service life. Specification: Condition: 100% New Casing Material: ABS Power supply: 2* AA Batteries(Not included) Size: approx.16cm x 11.5cm / 6.30 x 4.52in Package List: 1* Timer 3* Accessories 1* User Manual