The vacuum cleaner is good and does its job. The ride is smooth and easy to control. He conducted an experiment: he moved quickly around the bed - there was quite a bit of dust and debris, then he walked slowly - the result was already much better. The noise is comparable to a conventional vacuum cleaner, mb a couple of decibels quieter. The instruction is in Chinese, but in principle everything is clear - the container is unfastened by pressing the side button to pull out the filter - you need to pull it up, the brush seems to be removed too, but I have not tried it. I put a minus for the lack of an adapter for an outlet - I had to go around half the city to find it.