Snuza Hero is a mobile and easy-to-use movement monitor which clips onto baby's diaper to ensure that normal movement is maintained. Hero detects even the slightest movement and will alert you if your baby's movements are very weak or fall to less than 8 movements per minute. If no movement at all is detected for a period of 15 seconds, Hero will vibrate gently. Often this vibration is enough to rouse the baby, and Hero will revert to monitoring mode. After three vibration/rouse incidents, the Rouse Warning will alert you to the fact that your baby's movements have stopped for 15 seconds on three occasions. If no further movement is detected for another 5 seconds, an alarm will sound to alert you.