Done neatly. But, of course, I do not think that it will work for years) instead of batteries, immediately screwed up the old charge from Nokia-it works fine. (Need charging, for 5-6 V, trim the phone plug, bare the wires, we put in a glass of water and turn on the net, wait a minute, there will be bubbles on one wire-this is a "minus" in the compartment for batteries we compose "plus" to the spring on one side of the compartment, "minus" just shoved the wire between the housing and the terminal, On the other side of the battery compartment). By clicking the "set" button, you can specify the number of polyses per day and the duration of the pump in seconds for one watering. On top will flash the time remaining until the next watering.