The TomTom ONE XL-S is the high end of TomTom's ONE line of basicportable gps navigators.It adds text-to-speech functionality to the ONE XL's gorgeous widescreen, 4.3-inch display, expanded traffic options that include GPRS- and optional RDS-TMC radio-based real-time traffic information.The TomTom ONE XL is a complete portable GPS vehicle navigation device with an incredible range of features