... one Navigation: boot namely navigation, full voice navigation, high-sensitivity receiver, positioning accuracy, the error at 2 --- 5 meters Expansion ... battery Machine Dimensions: 128.5 * 84 * 15.5mm Supported AV-IN input Packing devices: Host, power adapter, stylus, USB data ... , headphones, car bracket, car charger, warranty card ITA4802: with AV-IN and FM function (you can add Bluetooth function)