1) Whole route voice navigation 2) 3.5" 4:3 touchable LCD screen 3) Built-in speaker 4) SD card interface 5) Resolution: 320 x 240 6) Brightness: 200cd/m2 7) Contrast ratio: 300:01:00 8) Vertical viewing angle: 105 degrees (45/U, 60/D) 9) Horizontal viewing angle: 120 degrees (60/L, 60/R) 10) SD: support to 128M / 256M / 512M / 1G / 2G 11) USB: USB1.1 12) Dimensions: 96 x 83 x 50mm 13) Battery: 3 hours playback