The LawnMaster OcuMow 16 robotic mower combines a high-definition camera and sensors with Optical Grass Recognition (OGR) software to identify grass and navigate around your lawn without the need for a boundary wire, outdoor power socket or app. Perfect for UK lawns of up to 300m2, simply drop and mow. A clearly defined edge around the full perimeter of your lawn, such as paving or gravel, or a raised edge at least 6cm high, is required to prevent the mower leaving the grass. Adjustment of the lawn edges may be required. As with other robot mowers, a grass trimmer (not included) is needed to trim the lawn edges. Not suitable for gardens with overhanging plants, undefined flower borders or edges with a drop off. The robot mower will cut in a random pattern for up to 4 hours* covering up to 150m2 per battery. Supplied with two powerful and reliable MX 24V 4.0Ah lithium-ion batteries for a continuous mowing time of up to 8 hours* (one battery charging while the other is in use) and garden