About this item High Speed Internet Access: 4G Mobile WiFi mobile router is designed to provide users with 3G 4G high speed Internet access, supporting the 3G 4G main frequency band of most countries and operators in the world. Support: Mobile WiFi is mainly for car users, business travelers and outdoor travelers, and supports 10 users at the same time. Wide Compatibility: Simply insert a standard SIM card, whether it is a mobile phone, laptop, desktop or tablet, you can easily connect to wifi (SIM card not included). .