KuWFi 4G WiFi Modem LTE Mobile Hotspot USB Dongle Mini Router Support SIM Card 4G/3G +Wi-Fi Wireless Access Provide for Car or Bus (not Including SIM Card) for USA/CA/Mexico KuWFi Mobile Hotspot 4G USB wifi dongle is not only a modem or a router, it is a real UFI, just like HUAWEI E3131. You can use it in cars via standard usb port, and outside with powerbank via standard usb port. Wireless access is available on both 3G&4G network and Wi-Fi networks.Support AT&T/ T Moblie/Straight Talk including all USA sim card .if connect the sim card with signal but cannot search internet , please log in web ui 192.168.0.1 to update APN. if the led light show red color mean no service please change new sim card support the router . Internet connection sharing, up to 8-10 users can access the Wi-Fi network at the same time. no need install software (WiFi Mode), Work with external power supply, no limited working time. it can charger by computer USB port/ Power Bank / Car USB charger/Power supply Able to connect with Tablet ,Laptop, notebook and different types of WI-FI devices Perfect for travel, outdoor working , and no Internet in the Sea or On the hill. -use the 4G wifi router bring WiFI and search internet.enjoy surfing the Internet with your family or friends simultaneously without lag Network Frequency: FDD-LTE: B2(1900Mhz),B4(1700Mhz),B5(850Mhz) 3G: B2(1900Mhz),B5(850Mhz) specifically forCA/USA/Mexico,for AT&T SIM card should be update Profile Name: ATT APN :Broadband. for T Mobile sim card should be update Profile Name: T-Mobile APN: fast.t-mobile.com,please check video how to use https://youtu.be/5h75o37ftkQ