Alfred is a new robot lawnmower from Marotronics, powered by ArduMower. The gadget has a GPS RTK system, removing the need for a perimeter wire to guide the device. You can adjust the cutting height of the robot and remotely control it with Bluetooth and Wi-Fi connectivity. The device comes with an enclosed docking station.
https://www.notebookcheck.net/Marotronics-Alfred-robotic-lawn-mower-works-without-a-boundary-wire.613270.0.html