Unlocked And Ready To UseThese are Huawei B310 routers without any network lock.  They are unlocked and can accept a suitable SIM card from any network. You can choose to use a SIM card from any network, Pay Monthly, or Pay-As-You-Go and has been tested on all 4 principle UK networks.PLEASE NOTE: This device will normally self-configure for the inserted SIM card and negotiate a connection with the mobile network automatically.  However, it is possible that some networks may require their APN data to be input manually.  There is a Set-up help sheet in the pack to assist with this. If you have any difficulty with this please contact us for support.It is also possible that some mobile phone SIM cards may not work in any Mi-Fi device if \"tethering\" or use through a different hardware device is not permitted. You may need to verify the suitability of a phone SIM with your service provider.CoverageA 4G router on your choice of mobile network can offer service at least as good as regular wired or fibre internet.  In remote or rural locations 4G and even 3G can perform better than fixed line options at a comparable monthly cost.Connecting DevicesAs well as connecting multiple Wi-Fi devices over remarkable distances, there is an RJ45 LAN port for hard-wired connection to a computer, smart TV etc. and even an RJ11 port for an analogue telephone.  The B310 can also send and receive SMS text messages. The B310 is neat and discrete and can readily replicate your home or workplace router while offering access for up to 32 devices.SpeedsThe HUAWEI 4G Router B310’s enhanced Wi-Fi extends wireless coverage and eliminates dead corners. Huawei 4G Router B310 connections of up to 150 Mb/s. The HUAWEI 4G Router B310 delivers maximum speeds of LTE CAT4 150 Mb/s through its Gigabit Ethernet port.Using AbroadThe inclusion of 800MHz and 850MHz frequency bands allow the device to work in most international territories including the Americas where many other mobile broadband devices cannot operate.