The Garmin Oregon 400T is a GPS System designed for Personal navigation.

Garmin nüvi is a versatile travel assistant that's approximately the size of a deck of playing cards. The nüvi is a portable GPS navigator, traveler's reference, and digital entertainment system, all in one. Combined with detailed maps, the nüvi provides automatic routing, turn-by-turn voice directions, and finger-touchscreen control - making it easy to find your way anywhere. The unique "text-to-speech" feature calls out turns by street name. The nüvi also offers a travel kit of useful travel tools to help keep any journey fun: MP3 player, audio book player, JPEG picture viewer, world travel clock with time zones, currency converter, measurement converter, and calculator. In addition, optional software packages such as the Language Guide and Travel Guide can be added for language and content support.