The inventor of the cordless window vacuum cleaner - is launching a device on the market that further perfects effortless, streak-free and drip-free window cleaning. With its extended battery life, even longer cleaning activities are possible without any problems. And thanks to the practical exchangeable battery system, the additional purchase of a second battery even makes non-stop window cleaning possible. With its soft components, the device handle ensures that the WV 5 Plus N Black Edition even surpasses its predecessor series in terms of handling and ergonomics. Furthermore, the device is equipped with spacers on the suction nozzle. This feature enables even better cleaning results right up to the window edges. A narrow suction nozzle for muntin windows is also included in the scope of delivery. The perfect combination of spray bottle and microfibre mop ensures effective cleaning and, in combination with the cordless window vacuum cleaner, residue-free windows.