Surely a radio that switches on for 5 minutes via motion sensor would be better? It's random music. Or just leave the radio on all the time and don't worry abou

Surely a radio that switches on for 5 minutes via motion sensor would be better? It's random music. Or just leave the radio on all the time and don't worry about the motion sensor. I don't believe a recorded waterfall sound coming from small speaker will mask the explosive bass-heavy thunder downunder from the toilet bowl and resonated around the bathroom. If anything, fix a few sound dampening tiles to the bathroom walls and ceiling.