Electronic child safety alarm alerts you when your child has wondered off or drifted away. Great for trips to the park, at the mall, a day at the beach, or every day use with a car seat or in the house. It's also great to give family members when they go out with your child or babysit. If the distance is reached or the transmitter is turned off, the receiver will give off an 80 decibel beeping alert (about as loud as a ringing telephone) and vibrate. Directions: Turn on and attach the transmitter (small and convenient) to the belt loop, or shoes of the child. Turn on the receiver (keyring style), and set the distance. Can also be used with other personal products such as cell phones. Alarms are tested before being shipped.