Thus, this is the norm. It's unfortunate the vendor didn't mention it wasn't genuine Certify. To sum up, I recommend both the vacuum and the seller. Make up your own mind has certain advantages: The vacuum does an excellent job at its designated tasks. It works well as a daily cleaner and sanitary aid. You're not helping him out by letting him inside a filthy, dusty apartment. Consequences with. This version is written in CHINESE. Do not be alarmed if the app suddenly takes you to * er and cuts off all communication with the vacuum.