Point-to-point navigation is just the beginning. Garmin nuvi 2555lmt features a microSD™ card slot so you can store and use detailed cityXplorer™ maps or download custom voices and vehicles for free from the Garmin Garage. Dual-orientation functionality lets you hold the nüvi vertically or horizontally for added convenience driving or walking. The "Where Am I?" emergency locator provides your exact latitude and longitude coordinates, the nearest address and intersection, and the closest hospitals, police stations and more. And Enhanced Exit Services tells you what services you’re approaching on the highway.