Pumpkin Android System Wireless USB 3G Dongle for Car Stereo GPS navigation Connect up to 5 WiFi enabled devices at the same time; Support standard WCDMA 3G SIM card (You need to buy your local Internet SIM card) Wireless access is available on both 3G network and Wi-Fi networks 3G dongle for Pumpkin Android 5.1, 4.4 operating system double din car stereo;