John Deere, the well known maker of gardening equipments has also entered into the robotic lawn mower market with the introduction of the John Deere Tango E5. The robot is designed for large private gardens up to 1800 sq m (19,400 sq ft) and has a pretty competitive features list. It uses perimeter wires to detect the area, and bounces randomly between borders and objects on the lawn. The Tango E5 is equipped with all the necessary sensors, like lift, tilt and bumper sensor, and has a pin code and loop lock feature to prevent theft. The robot is powered with a 36V 2600 mAh lithium-ion battery that lasts for about an hour. After a 90 minutes long recharging period the John Deere Tango E5 can resume mowing until the scheduled mowing period is over. Cutting height can be adjusted between 2 and 10 cm (0.7-4 in), while the 30 cm (12 in) cutting with provides efficiency. The John Deere Tango E5 robot is already available for £2,092 in the UK (~$3,330).