The combination of a battery-operated window vacuum and a vibrating battery-powered wiper makes cleaning dirty smooth surfaces effortless and quick. First, the dirt is loosened from the surface using the KV 4 battery wiper, which includes electric water discharge and a vibration function. Then, the remaining liquid can be suctioned off streak-free and drip-free with the WV 6 battery window vacuum. This model in the battery window vacuum series features an extra-long battery life of 100 minutes and new lip technology. The new suction lip of the WV 6 is so flexible that it can clean surfaces all the way to the floor in one go and achieve a streak-free result right up to the window edge—ideal for cleaning floor-to-ceiling areas. The product includes an adapter for the EU version.