On Amazon.com where you can now get this ILIFE A4s Robot Vacuum Cleaner
for just $106.99 shipped after you clip the $52 coupon!
This vacuum has multiple smart sensors to avoid bumping around or falling off the stairs. It will clean for up to 140 minutes before automatically returning to its dock and charging itself. It includes the ILIFE A4s robot vacuum, remote control, charging dock, AC power adapter, cleaning tool, extra set of high-performance filters, extra set of side brushes. It also includes a worry-free 12-month warranty.