With Text-to-Speech selector, TomTom One XL-S offers you the option of listening to GPS instructions instead of reading them. It's like having a guide. TomTom's award-winning software with Map Share and Help Me! and maps for United States and Canada help getting where you want to go easier than easy. The TomTom ONE XL-S portable navigator features a large, easy-to-read 4.3" widescreen touch display for hassle-free navigation. It comes preloaded with maps and future map updates are covered with new SD Secure Digital cards or downloads from TomTom, so you won't have to worry about your maps and features going out of date. Simply enter your destination on the ONE XL-S's touchscreen, and choose text-to-speech technology. It will guide you with turn-by-turn voice prompts, which speak actual street names. Multi-destination programming helps find the fastest way to run all your errands in one trip, or ask the ONE XL-S to find the quickest or shortest route, then follow the 2-D or 3-D map display to your destination. It truly is an interactive driving partner! Is Bluetooth 2.0 compatible Ready for TomTom PLUS traffic information services (you must have a separate device compatible with both GPRS and Bluetooth) ? available in most major urban areas Unit Dimensions 4-3/4W x 3-7/16H x 1-3/16D; weight - 7.3 oz.