There are very few people who look forward to mowing the lawn. For the majority of us, it's an undesired chore. Now you're in luck because the Robomow 21 in. Cordless Electric Lawn Mower mows the lawn on its own. The Robomow 21 in. Cordless Electric Lawn Mower mows your lawn for you. This means, you can spend your weekends relaxing while RoboMow does all the work. All you have to do is press "Go" and mowing begins. You can even mow while you sleep! The mulching operation even saves you the hassle of disposing the clippings and debris. You really don't have to do a thing!You're not the only one who benefits from the Robomow RL 850. Your lawn gets excellent treatment, too. During each mowing session, the RoboMower cuts the grass in several directions, resulting in a much healthier lawn. Thanks to the mulching system, the most valuable nutrients will return back to your lawn. The automatic mowing and an optimal combination of cutting parameters (blades speed of 5800 RPM and driving speed of .5 meter/sec) result in high quality mowing and a homogeneous, beautiful looking lawn.Additional FeaturesRecommended for lawns up to 10800 square feetCovers approximately 5400 square feet on a single chargeCompact three-blade mulching system6 height settings at the front and 2 at the rear5800 RPM blade speedLCD display panel and audioIntuitive and easy-to-use menusUser-controlled theft protection including an alarm systemKnobby wheels recommended for lawns with high grass,sloping or bumpy groundWeighs only 50 lbs. (Including the batteries)Includes exclusive drop-and-go 24-volt batteriesWater resistant; durable in all weather conditions and UV-protectedCharges in approximately 20 hours, runs for approximately 3 hours Safety FeaturesAutomatic operation - RoboMower is self operated without user interferenceChild Guard - helps prevent children from operating the RoboMowerPerimeter Switch - RoboMower cannot be operated in automatic mode if the Perimeter Switch is offLift Sensor - stops rotating the blades immediately when RoboMower is liftedSensors equipped bumpers - touch sensitive bumpers all around the RoboMowerOver-current mowing and drive systems protection About Systems Trading Corporation.Systems Trading Corporation (STC) was incorporated in 1994 as a manufacturer and distributor of high-quality, innovative, easy-to-use products at affordable prices. The company is privately held, with a skilled professional staff. Among the products offered, you will find the most innovative line of TV and flat-screen wall and ceiling mounts, the USA's best-selling backyard hobby greenhouses, the world's best-selling robotic lawn mower, and mini coolers and mood light products.