Rockit Rechargeable Portable Pushchair Rocker"Does your little one wake up as soon as they stop moving? The award winning Rockit keeps the pushchair rocking so you don't have to. Simply attach it to your pram or pushchair with the universal bracket, push the button and adjust the speed to gently rock your baby as they snooze. Scientific studies show the vibration level of the Rockit closely mimic hand rocking and the soothing movement is gentler than a pushchair moving over paving stones. USB