Easy to use and operate, all you do is take it out of the box, plug it in and you're ready to go—no additional tools required. It's even equipped with a convenient shut-off function, automatically powering down at the end of its three-hour cleaning cycle. Utilizing its on-board smart computer, it calculates the size of your pool for a programmed energy efficient cleaning pattern for a spotless clean pool…every time. This advanced portable cleaner brushes and scrubs while it vacuums reaching everywhere in your pool including the bottom, sides and steps. It also features an easy to clean reinforced cartridge element, which means no more bags—yet another eco-friendly attribute. As an additional safety measure, all TigerShark's feature a 24 DC volt, energy efficient motor.