when you ride in your Audi open A5 under the strong sunlight, you will find that your eyes need some special protection. Why no wear a sunglasses, it looks cool, meantime protect your eyes from the sunshine. If you feel it’s not very convenient to take a phone in the car, then a Bluetooth equipment must be necessary for you. If you want some products combined these two functions, then come to here buy the Bluetooth sunglasses.