http://www.eaprotection.com/child-guard-wireless-alarm.aspx
This child tracking device is economical and quite easy to use. After turning both units on, simply adjust the range setting to the desired distance (this is calibrated with a little trial and error), attach the bear to a child, and an alarm will be triggered if the child roams outside that distance. Great for amusement parks, malls, or crowded areas where your child might stop to look or wonder a bit while your distracted. *Note: this item does not replace good parenting practices.
