I already had a pair of tevas and I wanted to try these out because they are a fraction of the price. I used this to connect 2 Dell computers to 1 headphone. Now that Ive used it for a few weeks, I can honestly say its likely one of the best keyboards Ive ever used. We really like the app and find it useful. I have to charge 3 iPads, phones, watches, earphones every day. Also, they are made in China, not in Europe like another buyer stated in their review. Literally my favorite sunglasses ever. So yeah its very stable and wont ever fall off. I do find myself using this in the bath tub as well. it doesnt tell you which faces front and which faces towards the back of your car.