Good device. Crawls under beds, drives on low sills. But it can get stuck on the legs of the clothes dryer and chew on tulle and curtains if they are too long. Sometimes he is stupid with the route, but he noticed that he remembers some lines. In turbo mode, the vacuum cleaner works 1 hour 32 minutes - 1 hour 34 minutes. And the charge decreases from 100 percent to 14 percent, and then it looks for a base to charge. Not in turbo mode, it works for about two hours. It is advisable to place the base in a conspicuous place so that its beam is noticeable, otherwise it is looking for it for a long time, driving along the edge. Charges in about 4 hours. Speaks 2022. ) It is controlled both through the remote control and through a smartphone. You can control it from another city. )