At HomeRobomow

It features a battery powered three blade, 21" (53 cm) powerful cutting system equivalent to a 5.5 HP gas mower. Robomow is a dedicated mulching mower that mulches better than a traditional mower thanks to its Triple-Chamber-Mulching system and the 5800-RPM blade speed, double that of a typical gas mower. Grass is cut into very small clippings that are buried in the roots of the lawn, where they decompose and act like a natural fertilizer. This results in a healthier and better-looking lawn, and eliminates the need to collect and remove the clippings.

Robomow requires a one time simple set-up, which can be easily done by anyone. A wire is laid around the outer edges of the lawn, and attached to the surface of the lawn with pegs every few meters. The wire and pegs are supplied with the Robomow. The wire is connected to a small battery powered current source called Perimeter Switch (also supplied in the box). Typically the wire will be covered by grass and become unnoticeable in a matter of 2-3 weeks. Robomow recognizes the wire using a special sensor, and makes sure it always stays inside the designated area.
Robomow is operated by pressing the green "Go" button on the unit. It travels on the lawn in a systematic criss-cross pattern covering the lawn several times from side to side to ensure that the entire yard is covered and the grass is cut from several angles.
With the RL1000 and the Charging Station, it's even easier! After completing the one-time set-up of wire around the lawn including the Charging Station, set the weekly program and forget about mowing for the entire season! The Robomow will automatically depart at the day and time scheduled and automatically return to the Charging Station to recharge and get ready for the next scheduled operation. The weekly program can be re-set at any time, if and when required.

Demonstration video for the RM400 and RL1000
The other models work in exactly the same way, but without the docking station

Set-up and operations video for the RL1000
NB: The RM400 has a very similar set up to this model

Set-up and operations video for the RL350 / RL500 / RL550 / RL800 / RL850
NB: The RM200 has a very similar set up to these models