More built-in vacuums these days have retractable hoses, which is an awesome convenient feature but it means the hoses cannot have wiring inside to power a rotating brush. The traditional solution, an air-powered turbine brush, works but has performance limitations for thick carpet or lots of pet hair. Today's powerful battery pack technology makes the concept of a rechargeable electric power brush quite practical. Here we look at four options from Perfect, Hide-A-Hose, Wessel-Werk, and Lindhaus.