The TomTom XL 330 and 330S are part of the XL series of automotive GPS receivers. Both units come equipped with a 4.3-inch high-resolution widescreen, TomTom's MapShare technology for personalization and updated information, traffic information and voice instruction. They both feature Plug-and-Go installation and EasyPort mounting for quick set-up and multi-vehicle use. The XL 330S is different from the XL 330 as it features a built-in text-to-speech function.