This 4G WiFi hotspot travel router features a display, a SIM card slot, and a 2100mAh lithium battery. It connects to the internet via an HSPA/LTE data SIM card. Battery-powered, it's suitable for indoor or outdoor locations without broadband, and fits in your pocket, allowing you to enjoy WiFi anytime, anywhere. [Operating Mode and Frequency Band]: This 4G LTE router supports 4G to WiFi and accepts 4G SIM cards. It primarily works with AT&T/T-Mobile networks in the United States. [Easy Connection]: This Travel Partner WiFi hotspot offers easy connection and portability, sharing up to 10 users within a 50-meter range. Simply insert a SIM card and use this portable 4G LTE router to share WiFi with friends. [Tips]: Insert the SIM card, then install the battery (remove the insulating film). Even if your SIM card is compatible with the product, it may not work immediately. You may need to disable the SIM card's PIN and change the APN. Enter the router IP address: 192.168.0.1 - Click "Network" - "APN" - "Enable." Change the APN. Ensure the SIM card is activated. Roaming services, virtual SIM cards, and IoT SIM cards are not supported. Product Package: 1 * Portable WiFi Router (SIM card not included)