07-29-2009, 04:45 AM
It won't work, as some are gently trying to suggest. Even if it did, and one had speakers and wattage capable of producing ultrasound at significant Db, it would be irresponsible in the extreme to use it, as it will not only hammer dogs, but birds, insects, and every other organism in the area, but likely semi-carbonate your own brain stem as well.
Snake oil. Straight up.
Snake oil. Straight up.