Review on Enhanced Multifunction Ethernet Collation Telephone Continuity: Boosting Connectivity and Efficiency by Paul Wilson

Thought this would work for running wires around the house, but if you're not running circuitry in a small area it won't work. I was hoping to trace some of the wires at home, but this thing just isn't designed for it. I wish I had missed the window to bring it back. Maybe in the future I want to trace the wires in the car and then it will be useful to me, but so far money is wasted. The headphone jack is custom sized so you can't use regular headphones to hear the signal.