This is an amazing wireless device! I bought a few others but they didn't work as well as this one. I have a spa and needed something to recognize the vacuum between clients. This vacuum is perfect. It's quite powerful, but quiet enough that we can use it during treatments with the door closed and it can't be heard in other rooms! It picks up dust, fine dirt and hair well. I even bought one for my home as I have a German shepherd who sheds a lot. Works even better at home. It can be maneuvered perfectly as the head can turn in all directions. I love that it mounts on the wall charger and the telescopic tube is excellent. I love everything about this vacuum cleaner. The two I have are very impressive. Definitely worth every penny!