Sounds like a portable unit my (gullible) brother bought to jam nearby cell phones. It worked - kinda - up to about 6 feet from my cell phone while dialed to his cell inside the house. It had three antennas for all 3 bands used today and the range was all but useless for a near $400 unit that could almost be kept in a large shirt pocket. Like P.T. Barnum once said, "There's a sucker born every minuet!"