AVERATEC Voya 350 GPS Navigation with 3.5-inch Touchscreen is easy and fun with the AVERATEC Voya 350 in your car, guiding you turn by turn, with a friendly voice and visual signals, even when you don’t know the address.Some specifications about : Processor:300MHz Samsung S3C2440A RISC microprocessor ,Operating System:Microsoft Windows CEV4.2;Memory:64MB SDRAM, 64MB Flash ROM;  GPS Chipset 12ch SiRF III high sensitivity chipset;  GPS Antenna :High-performance helical; Display:Wide View 3.5″ TFT LCD 320×240 resolution with  touch screen, 16.7 million colors;  Expansion Slot One SD/MMC;  Audio Output Built-in 18pi speaker, 3.5mm stereo headphone jack ;Input Method Stylus pen (included), touch screen, software keyboard ;user Controls Five-way navigation jog button, four function  buttons (home, GPS, map zoom +/-) ;Dimensions: 4.53″ W x 2.87″ H x .79″ D ;Weight:6.0 ounces ; Battery:rechargeable, removable Li-ion battery, 1100 mA ;Power:5V, 1.5A AC home charger and car charger.