NOTICE :1. 4G router/modem only support universal SIM cards . For some locked SIM cards , contract SIM cards which operators 't allow to use on wifi routers , or only allow to use on their authorized devices . This product might not work. (IF your can not access to Internet ,pls 't be panic .usually you change another operator's universal ,then it will work .Or you can contact us for help .)2.Knowledge about 4G speed . in practical daily use , 4G WiFi router usually would 1 - 20 M/s download speed for WiFi users .it's enough for users to watch video ,play games ,etc smoothly .Router's 4G chipset top capacity is 150M , and 4G base station's theoretical top speed is 150M too .however the 4G base station service to many 4G users at the same time , of giving full 150M bandwidth to one , and 4G signal strength , limitation and environment would affect speed too .IF some ignorant for top theoretical speed , and love to use inaccurate APP or software to test network speed , pls 't buy . no product on market would such requirements . Thanks .This MIFI does NOT include , users need to buy a from local operators to use this device .European version(EU) :4G LTE : B1/B3/B7/B8/B20/B38/B39/40/413G:B1/B8European version works in areas of ,Africa ,middle too .(such as Russia, , Ukraine, , Belarus, , , , , UK, Ireland, Switzerland, , Sweden, , , Denmark, Latvia, Lithuania, , Slovakia, Hungary, Austria, Holland, Belgium, ,Romania, Bulgaria, Serbia, Albania, Greece, Slovenia, ;Korea , Japan, Israel,Turkey, , Singapore, Azerbaijan, ,Australia, Arabia, Qatar,United A , Pakistan,; and other African ,Asian countries )this device provides high speed 4G LTE WiFiaccess , supports 10 WiFi users . Users insert 4G , it will Internet wifi automatically . easy to use and carry anywhere .This wifi router supports both 3G&4G networks., Laptop, computer, books, mobile phones and different types of WI-FI devices can connect to the 4G WiFi router to access to Internet .PRODUCT FEATURESHigh speed LTE Chipset, Support TDD-LTE/FDD-LTE/UMTS/ networks2100mAh batterysmall size pocket WiFi HotspotUp to 10 WiFi userscolor: Whitematerial: plasticPackage Contents:1 x Wireless wifi routerOnly the above package content, other are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.