TomTom GO 600 Portable Vehicle GPS TomTom Traffic - Drive with world-class traffic information - Lifetime Via Smartphone 3D Maps - See buildings and landmarks in stunning 3D Internal memory - 8 GB; SD slot - microSD Interactive Maps - Put the world at your fingertips Lifetime North America Map Updates - Always drive with the latest map. 6.0" Capacitive Touch Screen. Please note: This product is battery operated. There are regular PND updates that the user needs to do by connecting the device to their computer. This is recommended once every three months. Upon purchase the customer should be registering their device, upon registration the user will then receive notifications on any and all updates and will be prompted to perform updates upon connecting to their PC. (Voice control instructions can be found in the user manual on page 78) 6 inch (15 cm) touch screen