Review on Enhanced PortaPow USB Data Blocker (Red 2 Pack) - Safeguard against Juice Jacking by Daniel Truett

My car has a factory sat nav but I prefer google maps. Unfortunately, when I connect my phone to the car with a USB cable, the device keeps trying to sync data even though my phone doesn't allow it. The result is a barrage of rapidly flashing phone screens that turn my phone off and make it unusable to navigate. By simply plugging the PortaPow data blocker into the car's USB port, I now have a clean, reliable, and clean power source for my phone. The syncing issue has been completely resolved and my phone is charging fast. This is one of my best buys in a long time. I have no affiliation with PortaPow, I'm just a grateful customer, grateful for an inexpensive device that has elegantly solved a big problem.