For Bounce series such as RoboVac 11S, 11S Max, 15C, 15C Max, 30, 30C, 30C Max, the beep sound cannot be turned off or adjusted. Please understand that the beep alarm is designed for users to know that the RoboVac is stuck or has errors, and solve it in time to continue cleaning. For Dynamic navigation series such as G30 and iPath laser navigation series such as X8, the voice can be adjusted on the eufy Clean app by Settings-Voice Settings.