Let the s9 handle the tough messes so that you can handle everything else featuring Perfect Edge? Technology, our most powerful cleaning system, and advanced features. With a single command to your Google Assistant or Alexa voice assistant like, Tell Roomba to clean under the kitchen table, it gets to workwhen and where the messes happen. It even learns your cleaning habits and offers personalized schedules and recommendations during pollen and pet-shedding seasons. A specially designed Corner Brush and 40X the suction pull in embedded dirt, dust, and pet hair from wherever it hidesfor cleaning that fits seamlessly into your life. (compared to the Roomba? 600 series cleaning system) (Alexa and all related logos are trademarks of Amazon.com or its affiliates. Google is a trademark of Google LLC)