This unique baby calmer device calms your baby to sleep with the white noise. This Gro Hush is an essential device for all the mothers. It transmits soothing white noise directly to your baby keeping them happy and relaxed. It can be used at home or while travelling. The Gro Hush baby calmer has got 3 soothing white noise to choose from; heartbeat, Ocean waves, raindrops on tin roof. All these sounds are set at a safe volume for your baby and cannot be changed.