Review on Flows - Polarized Bluetooth Audio Sunglasses - Enhanced Sound with Open-Ear Speakers, Extended Battery Life, UVA & UVB Protection, Unisex Smart Glasses – Taylor Style (Matte Black) by Hector Smith

The sunglasses themselves work great and the overall look is fantastic but not sure about usefulness as a bluetooth transceiver . I wore it for a walk during the day and used it to listen to an audio book. Even at maximum volume, I had to concentrate to hear and listen. Every time a car drove by, I heard nothing - the traffic noise drowned it out completely. When I used it to call my wife, she had trouble understanding my voice because of the traffic. However, it works great when the environment is completely quiet (or closed). It took less than 30 minutes to charge and pairing with my Android phone was trivial.