Great except you need ear plugs

This washer dryer combo is great - uses little water, spin is great, drys clothes. The problem is that after the dry cycle OR the wash cycle, the buzzer is so loud and goes on for so long, that it wakes my toddler -- I'm talking a heavy sleeper who never, ever wakes up after going to bed at night. There is no knob to turn off the signal, so you just have to plug your ears and run to the machine (and to the baby who starts crying). I thought they made signals an option to turn off or on back in the 80's?