4G router is accesses the Internet through 4G mobile communication dial-up or board band through WAN port. The device have a build in 3G/4G modem, before using the device, please order a local 4G SIM card and insert to router. PLUG N PLAY Insert the SIM card, then you can surf the internet after plugged in power cable. And it supports 4G LTE FDD/TDD and 3GUMTS Multiple security measures Supports advanced wireless encryption method such as WAP and WPA2, supports SSID hidden settings, and supporst one click removal of unknown connection users Specifications: High-concerned chemical:None 5G Wi-Fi Transmission Rate:None Wi-Fi Transmission Standard:802.11g 2.4G Wi-Fi Transmission Rate:300 Mbps Wi-Fi Supported Frequency:2.4G US version (The product printed words depending on the batch, but this does not affect use) Color:Black Material:plastic Package Contents: 1 * 4G LTE WiFi Router Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.