The RSV150 is like having a Henry vacuum on your back! Numatic has created a high quality, quiet and powerful backpack vacuum that is very comfortable to wear for long periods of time. Numatic spared no expense when it came to the ergonomics as it sits very comfortably on all body types. The Pro Harness are thick padded adjustable shoulder and waist straps ensuring that is sits in proper form while you vacuum. It also provides superior airflow around the user while adding extra comfort. Inside is a very powerful 620 watt commercial motor that Numatic is famous for as it has lots of suction and airflow cleaning carpets deeper. This motor has a 2250 hour rating lasting up to 2x the motor life of others on the market. The 50' cord ensures that you don't have to switch electrical outlets as often and also detaches at the machine for easier management. And the 5 foot, top mounted swivel hose won't tangle up as you move. The rug tools allows you to transition between carpet and flooring without switching heads.