The LawnMaster cordless robotic mower is perfect for large lawns. Its adjustable cutting height of 20 to 60 mm and three razor blades will get your grass cut to perfection. With a 4 Ah battery, it can handle those tricky uphill patches like a champ. And, if it runs out of power, it'll take itself back to the charging station and get back to work on its own.Good to know - The PIN protection makes sure you can choose who gets access to mower controls - If it starts raining, no worries - it's IPX5 water-resistant - Thanks to the bump sensor, it won't get stuck if something's in the way - Charge it up fully in just 100 minutes, so you're back to mowing with barely any wait