... in Hi-Fi speaker, volume adjustable;4.Button and touch-screen operation;5.Built-in sensitive GPS antenna;6.The navigating software ... 3' LCD TFT display Resolution :480RGB(H)x272(V)Touch-screenHigh-accuracy, endurable touch-screenUSBUSB Client 2.0, MINI USB portSDSD / MMC ... , the blue light is on.Operating SystemMicrosoft Windows CE 5.0Navigation SoftwareSD cardVideo PlayerASF,AVI,WMV,3GP,MP4,FLV;Audio ...