Hi there Besnier! What exactly is the distance between the litter box and the cats? In reality the Litter Robotic would make sound but is just not that noisy either. My cat received used to that sounds and she or he would seem to grasp the litter box is cleaning https://petskyonline-onlinestrore.blogspot.com/2025/07/petkit-purobot-ultra-premier-auto.html