My Roomba 786p does a pretty loud clicking sound... :D | RoboVacCollector - YouTube
Robotický vysavač iRobot Roomba 786p | Aukro
iRobot Roomba 786p vacuum robot (230 Volt) blue / gray : Amazon.de: Home & Kitchen
Amazon.com - Shark UR2500SR AI Ultra Robot Vacuum, with Ultra Clean, Home Mapping, 30-Day Capacity Bagless Self Empty Base, Perfect for Pet Hair, WiFi, Compatible with Alexa, Black/Silver (Renewed)