Ebay offers iRobot Roomba 960 Vacuum Cleaning Robot - Manufacturer Certified Refurbished for $149.99 (reg. $499.99) after code free shipping.

Apply Code: IROBOT20

Product Description:
Powerful performance and powerful pick-up. Power-Lifting Suction delivers 5X the air power* for improved pick-up performance.* *(Compared to Roomba® 600 Series)   It won't stop till the job is done. Intelligently maps and cleans an entire level of your home. Patented iAdapt® technology with vSLAM® navigation actively captures thousands of precise measurements each millisecond to optimize coverage.   Navigates in neat rows. Purposefully and logically cleans in neat rows and uses floor tracking sensors to navigate your home.   Ideal for homes with pets. Unique Dual Multi-Surface Rubber Brushes don't get tangled with pet hair. Brushes adjust and flex to stay in constant contact with carpets and hard floors. High-Efficiency Filter traps 99% of cat and dog allergens.   Learns your life, listens to your voice. Learns your cleaning habits to offer up personalized schedules, while Google Assistant and Alexa allow you to start cleaning with just the sound of your voice. The 960 will even suggest an extra clean when your area's pollen count is high or during pet shedding season.