I have a Shark Vertex Cordless. It has a duo dry roller and a no-tangle roller. No other Cordless Vac had that. It's last year model though, not sure what the

I have a Shark Vertex Cordless. It has a duo dry roller and a no-tangle roller. No other Cordless Vac had that. It's last year model though, not sure what the improvements are now!