Magellan RoadMate 3055T-LM Automobile Portable GPS Navigator - 4.7 - Touchscreen - Microphone Speaker - microSD Card - Lane Assist Text-to-Speech Basic Pedestrian Mode - Bluetooth - USB - 2 Hour Lifetime Map Updates and Lifetime Traffic Alerts. Bluetooth Speakerphone. Free Lifetime Maps. Wide 4.7 Touch Screen WQVGA and Transmissive Display Type Color.