ANLENG 7" inch Car GPS Navigation HD Touch Screen FM 128RAM 4GB America Map Truck Comes with free map (America map) 128MB RAM, Built in 4 GB ROM, MicroSDsocket,MAXMicroSDcardupto8 GB. Windows CE 6.0. 7inchTFThighresolution800 x 480. Built-in loud speaker, Durable design, suitable for outdoor use. Built-in sensitive GPS antenna, Navigation software can be run directly on the TF card.