kuwfi 4g wifi router unlocked travel partner 4g lte wireless 4g router with sim card slot support lte fdd b1/b3/b5 support at&t and u.s. cellular 4gPlease make confirm the router can work network Frequency: FDD LTE: B1(2100MHz), B3(1800MHz) /B5(850MHZ) AT&T and U.S. Cellular 850mhz TDD-LTE:B38(2600Mhz),B39(1900Mhz),B40(2300Mhz),B41(2500Mhz) can work Spint network WCDMA:B1/B5/B8 GSM:900Mhz/1800Mhz850mhz More country operator and frequncy band ,you can check this link to learn it : MF901 KuWFi Travel Partner Wireless Pocket 4G WIFI Router Product Specifications WIFI KEY:1234567890 WEB GUI:192.168.0.1 admin :admin Network share,support multiple user access at the same time Bettery capacity is 2000mAH,standby super long time. Game time period instead of the car, easy to reach destination Peak Rate: DL/UL 100/50 Mbps in max WiFi Protocol: 802.11 b/g/n Wi-Fi User Number: up to 10 Battery: 2000mAh v Wworking time:up to 6 hoursLTE), 12 hoursUMTS) (depending on the network conditions) standby time :more than 120hours Operation Mode 4G Wireless Router Support sim card and TF card Operation System: Win XP/Vista/7, Mac, Android, linux Language: English, Chines Package: 4G Wi-Fi Router*1, battery*1, USB cable*1 User Manual SIZE :98mm * 63mm * 14.4mm WEB UI :192.168.199.1 Please notice: 1.As we all know that have so many operator and frequncy in the world ,so please check the frequancy of the sim card Compared with our goods,if you do not know the frequncy ,please ask your operator first. 2.If the frequncy is right ,but can not connnect automaticly,for this can enter the ip address ,then setting the APN of the sim(the info can consult operator) 3.If signal is unstable, you can also manage the settings page, lock 4G or 3G network, can effectively improve the stability of the network.