The Horizon GPS from Ordnance Survey is the ideal device for those looking for GPS mapping while out on two wheels or two feet. It is lightweight and compact whilst still being rugged and durable in all different types of weather. Featuring a removable battery, expandable memory and with the ability to track performance, it is perfect for all different kinds of adventures.Whether going for a long bike ride in unexplored lands or simply want to plan a day route with friends and family, you need a GPS that is both reliable and accurate. Combine the mapping knowledge of Ordnance Survey and state of the art technologies and you get the Horizon GPS so even if you don\'t know where you are going, you\'ll know where you are.