Huawei E8377 Hilink CarFi is a mobile WiFi hotspot,which can provide the wireless internet in the car. Once plugged into the cigarette lighter,Huawei Hilink CarFi E8377 supplies users with download speeds of up to 150 Mbit/s,and up to 10 devices can be connected. The Hilink CarFi can be controlled by app in smartphones with Android or iOS system. There is a SIM card slot in the CarFi,after SIM inserted,the E8377 can work as a wireless hotspot. The USB Port is to charge mobile electronics such as smartphones or Pads. Huawei E8377 CarFi has similar functions as Huawei E8278,but it can directly plug in the car and work. Penta-band LTE,dual-band UMTS and quad-band GSM. Works with the majority of service providers,all over the world. Please check supported bands Download speed up to 150 Mbps and upload speed up to 50 Mbps Support for 10 simultaneous Wi-Fi connections,suitable for family use Compatible with any Wi-Fi enabled device,smartphone,laptop,tablet,etc. Compatible with any operating system,easy to use Plugs into the car cigarette lighter socket,then insert the SIM card to use USB port can provide power for other devices The device is not locked. Works with any service provider Specification: Model: E8377s-153 4G LTE: FDD 800/900/1800/2100/2600 MHz 3G UMTS: 900/2100 MHz 2G GSM: 850/900/1800/1900 MHz WiFi standard: 802.11b/g/n,2.4 GHz WiFi clients: max 10 simultaneously Antenna: internal + optional external antenna,TS-9 connector USB port: provides power for other devices Package included: 1 x HUAWEI E8377s-153 4G LTE Hilink Carfi