Children often tune out of repeated requests to do their homework, pick up after themselves, or finish their chores, apparently totally unable to hear the  parent's voice. Yet even they are no match for the Nag-a-Phone.  The weapon of choice and a real throat-saver for exasperated parents, this clever device repeats any request up to 30 times with rapidly-increasing volume until its sensor at last detects a child's movement. $127.95

Reviews

Worked, but only for a short time. The low price enabled my teenage twins to buy their own, and they used them against my wife and me. — Sylvester Pratt, Roswell, NM