Review on Juice Jacking Protection USB Data Blocker (2 Pack) for Cell Phone, Tablet, and Laptop, Prevent Unwanted Data Transfer, Safely Charge iPhone, Android Devices by Victor Pinckney

Product does not allow my iPhone to send turn-by-turn instructions through my car's USB system. The charging options are the same as before without an adapter. This product could be improved if the outer edges weren't so sharp. A little filing or maybe shrinking will heal it. It's also a bit long, but this product is shorter than most other similar data lock products. I just think it could have been even shorter.