Hayward Navigator.

The Pool Vac Ultra by Hayward is a unique on-board Aqua Pilot steering system that allows the Pool Vac Ultra to clean your pool faster and more effectively than other automatic pool cleaners which only utilize random pattern movements. The hassle-free Ultra is able to climb walls to get those hard to reach spots. No debris bags to empty or replace. Installs in ten minutes or less. Instructional video included.