The wirelessly charged cleaning brushes plus three different cleaning brushes can help you clean a variety of relatively difficult-to-clean corners. In particular, you can extend it to allow you to clean higher areas. It only takes 1-2 hours to fully charge and can be used for 40-60 minutes at a time. Before you use the electric cleaning brush, moisten the object you need to clean, then put the detergent on the surface of the brush, and you can start using it.