Frequency band: B1, B3, FDD,3 HOW TO USE:1. Push down the back cover. Insert the SIM card with the card core facing down.2. Plug the USB port into a power source to get WiFi.3. Connect to WiFi and you can surf the Internet.4. Connect to WIFI, open 192.168.100.1 in the browser to enter the background, in the background you can modify the WIFI name and password to add APN. Not just a 4G USB modem, but also a USB Wi-Fi Router Wireless access is available on 3G, 4G networks and Wi-Fi networks. Convenient and portable, the 4GDONG001 is easy to use and has a stylish appearance. High-speed internet access, suitable for both the office and home. It can also be used via laptop, notebook, UMPC and MID devices. Inserting a SIM card acts as a wireless router with simple operation, no need to set up. Type: Network Card Chip: Qualcomm 9600 Color: White Size: 95x33mm Material: Plastic Transfer rate: 150Mbps USB: standard USB interface, FDD, B3 3G Package includes: 1 x 4G LTE USB modem