OnCourse Goggles are designed to help you swim straight in open water, especially for open water competition and triathlons. The goggles are USAT approved for all sanctioned events. Stylish and functional, our patented technology will keep athletes on course and on their way to their personal best. OnCourse Goggles reduce anxiety, save precious energy and improve performance by reducing zig-zag. After establishing a target bearing for the electronic compass with the press of a button, the direction of the user is monitored by the micro-controller. Feedback LEDs inform the user if they are on course, or have deviated from the target. The Inner Orbit model is our first model of navigation goggles and and was designed for swimmers looking for an inner orbit fit (inner eye fit). This specific shape covers swimmers that have the most common size eye sockets, or are accustomed to goggles that fit within the eye socket (Most all swimmers). The soft silicone gaskets in our goggles provide extended comfort over longer periods of time. OnCourse Goggles feature polarized lenses, anti-fog coating, UV protection, good field of vision, with a comfortable strap. Can be charged with any USB port or charger. Battery life in Compass Mode is expected to be up to 24 hours. Supplied with a dual port USB automotive adapter rated at 3.1 amps, a beautiful padded mesh carrying bag and a white silicone USB cable that can be used with OnCourse Goggles, Samsung Phones (micro USB) and other micro USB devices. One cable can be used across multiple devices. Quantities Limited.