Highly intelligent robotic lawn mower: GARDENA SILENO City automatically mows yards up to 5400 sq ft using PATENTED streak-free technology, with easy connectivity via Bluetooth EasyApp Control, Auto-Schedule and EasyConfig Precise, silent navigation: Relax in your backyard while SILENO City traverses narrow spaces and tight corners while cutting your grass with one of the quietest in class noise levels of 57 dbA Safe and reliable: The boundary wire ensures the Robotic Lawn Mower only mows the areas specified while collision sensors ensures the mower operates safely with no accidents or damage to your garden All-weather and terrain: SILENO keeps mowing rain or shine and cuts all shapes of lawns within the boundary wire limits, from simple to complex including slopes of up to a 35 percent gradient (19°) DIY Installation: Easily set-up your robotic mower at home, using our installation videos or user-friendly instructions and everything you need, provided in the box