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, and available for long service life. Specification:Condition: 100% Brand NewCasing Material: ABSPower supply: 2* AA Batteries(Not included)Size: approx.12.5cm*11.5cm / 4.92*4.52in Package List:1* Timer3* Accessories1* User Manual