The new, ILIFE A4s with remote control and 6 cleaning modes is a must have for the home. Knowing its own location, the A4s cleans for up to 140 minutes before automatically returning to its dock, recharging and completing the job. And with a Hepa filter and the unique ILIFE V-Shaped brush, deep set dirt and allergens are taken care of on hard floors and carpet. Clean. Always.