Snuza Go! is a mobile and easy-to-use movement monitor which clips onto baby's diaper to ensure that normal movement is maintained. The ultra-sensitive flexible tip detects the slightest of movements. If no movement at all is detected for a period of 20 seconds, Snuza Go! will emit an audible alarm to alert you. The 20-second period can be reduced to 15 or 18 seconds if preferred. Snuza Go! will also alert you if your baby's movements are very weak or fall to less than 8 movements per minute. The Snuza Hero will pick up external movement it is therefore not suitable for co-sleeping babies or bedsharing. We advise that the Snuza Hero should not be used when the baby is moving for example in a car seat or a stroller.