With the ability to display maps in 2D and 3D, the Garmin Oregon 450T is a handheld GPS receiver which is ideal for hikers or those who participate in Geocaching. This Garmin GPS receiver is preloaded with topographical maps of the United States and Europe. In addition, this device has a worldwide base map with shaded relief which displays national, state, and local parks as well as forests, trails, rivers, and lakes. The 3-inch (7.62-cm) colour touchscreen display of this Garmin GPS receiver is readable even in direct sunlight, and this handheld GPS receiver is also waterproof. It is made for the outdoors to handle bumps, dirt, and humidity. The triple-axis electronic compass of this Garmin GPS receiver allows for the display of exact coordinates while out in the open or under heavy foliage or cloud cover. The Garmin Oregon 450T is powered by two AA batteries. This versatile and user-friendly Garmin GPS receiver measures 11.4 cm in height by 5.8 cm in width by 3.5 cm in depth.