The Huawei E5576-320 is a compact 4G Wi-Fi router that allows you to access fast internet anytime and anywhere. Simply insert a 4G SIM card into the device, and the Huawei E5576-320 will create a Wi-Fi network capable of supporting up to 16 wireless devices. It's ideal for travel or locations where there is no internet connection available. The Huawei E5576-320 is unlocked, so you can use SIM cards from any provider. The built-in battery of the Huawei E5576-320 lasts up to 6 hours depending on usage and network conditions. The standby time is approximately 350 hours. When the battery is low, you can easily recharge it using the included USB cable via your PC.