Child Guard Panda was designed so that you will never lose your child. Have you ever had the gut wrenching terror that your child is missing or lost? I am sure we have all had that terrible feeling of turning around in the mall or on a busy street and finding that your child is nowhere to be found. Now child guard panda will prevent this from happening. The child guard panda is worn by the child which contains a transmitter which sends a constant signal to the receiver which is held by the adult. The signal is adjustable from distance of 3 to 21 feet, so that when the child goes beyond a set distance the receiver starts to beep, letting the adult know that the child is starting to wander off. The child guard panda is worn on the child's wrist. Dimension for the child unit are 2 1/8" x 1 9/16" x 5/8". Dimension for the parent unit are 2 1/2" x 1 1/2" x 1/2".