With the small handy device, cleaning smooth surfaces will now become even easier. Leaving very little issues remaining in reaching the bottom edges of the window, allowing you to get on with your day quicker & not having to worry about long window cleaning tasks. Managing the power consumption of the device is a breeze, a quick look at the LED lamps will notify you on the condition of the battery life remaining, so you'll never have to run out mid task, & with 15 minutes' worth of run time, you should have plenty of time to nip around your whole house for nice clean windows.