Water and dust resistant, this OnCourse approved mobile charging station will deliver portable charging power for your OnCourse Goggles and other mobile devices. Lightweight and beautiful, our mobile charging station will fit in your tri-pack, has a massive 10,000 ah of battery power, two USB ports and a battery status indicator. Don’t get caught with a low charge on your goggles before a race. Supplied with micro USB cable for charging via your OnCourse car charger or any other USB charger. Great gift idea for someone who already owns a pair of OnCourse goggles.