【100% SATISFACTION GUARANTEED】We promise every customer 100% shopping satisfaction.If you have any questions about your purchase, please feel free to contact us at any time.If you are not satisfied with the mobile WiFi router, please let us know immediately so that we can refund you in full.If you have any questions, please contact our customer service. 【4G WIFI HOTSPOT & HIGH SPEED】The travel WiFi router does not require a broadband connection, just a 3G 4G SIM card to connect to a 5G network.It provides extremely fast internet speed for your device even when there is no 5G network.The effective distance: 10m. 【HOW TO USE】Insert the SIM card and install the battery.Even if your SIM card is compatible with the hotspot WiFi device, it may not be plug and play.You may need to disable the SIM card PIN code and change the APN.And supports network bands b1/2/3/5/7/8/20/40.The mobile WiFi hotspot can connect up to 10 devices at the same time and supports smartphones, tablets, laptops, etc. 【MAIN FEATURES】The 4G LTE mobile WiFi hotspot has a SIM card slot and a 2100mAh battery.It can be powered by an external power supply, with no time limit.It can be charged via a computer USB port, car USB charger or power adapter. 【APPLICABLE SCENARIOS】The 4G LTE USB WiFi modem is small and lightweight, suitable for party, travel, business trip, work, outdoor live streaming, gaming, car WiFi, etc.PPLICABLE SCENARIOS】The 4G LTE USB WiFi modem is small and lightweight, suitable for party, travel, business trip, work, outdoor live streaming, gaming, car WiFi, etc.