The system uses an active valve performance exhaust system that closes valves to restrict the amount of noise made by the car. (thetorquereport.com)
Even you can be surprised that your baby continues its deep sleep through the night in spite of a lot of noises it makes while sleeping. (shrewdmommy.com)
Moms are happy with this swing but the downside is the loud noise it makes when you adjust the speed. (followmum.com)