I bought this charger more for the fact that it uses a detachable USB cable. This is highly advantageous because you can use the car charger with other USB cables and the USB cable with other chargers. Both the USB cable and car charger work great. My only issue is that despite it's versatility and usefulness, the price is still quite high. Other than that it's a great product and I definitely would recommend it if you're looking for alternative methods to charge your Arizer Air.