This is a Portable Modem Wi-Fi Router with Sim Card Slot, 300Mbps Wi-Fi, 3000mAh Battery for Home/Office/RV/Camping - great for the outage cases! 
A brand new - opened box to check if everything is OK.

FEATURES:

【High Speed Cat4 Wi-Fi Router】This SmartSIM 4G LTE Router adopts high speed Cat4 connectivity, support Wi-Fi up to 300Mbps, 150Mbps download speed & 50Mbps upload speed and get large Wi-Fi coverage. Since CPE equals to Modem and Ethernet Router, so the 4G router with SIM card slot becomes higher efficient connectivity. Equipped high-performance 5dBi detachable antennas, WAN/LAN port, USB slot, and 12V 1A power supply.

【Support AT&T and T-mobile】Just need to purchase a SIM card. 4G LTE Wi-Fi Router can work with US top cellular operators AT&T and T-Mobile. Automatically matches the best signal in your local area, wide coverage of the network, no contracts, no voice/text, no activation fee. You can use Wi-Fi at any time and anywhere.

【Preferential Data Plan】 It has its own SIM card with 3 kinds of data plan for your choice. Data plan ranges 5GB to unlimited GB per month, lowest $0.3 per GB.

【Built-in Large Battery & Portable】Portable Wi-Fi Router comes with 3000mAh battery, makes router more portable and practical. Wi-Fi Router can be used indoor and outdoor, which provide a portable Wi-Fi and hotspot. Besides home, dorm and office, this wireless Wi-Fi router can use in other places like car, RV, camping, fishing or trucks. Additionally, cellular router allows 32 devices max to connect SIM simultaneously, sharing Wi-Fi with friends and have fun.

【High Gain Detachable Antennas】SIM card Wi-Fi Router comes with 2 external antennas and 2 internal antennas. Built-in 2X2 MIMO system, high-gain 5dBi Wi-Fi antennas enhance the sensitivity of the modem router and improve the signal quality of 4G LTE and Wi-Fi. Featuring detachable and adjustable design, the high-performance antenna interface provides a variety of installation possibilities like wireless and wired way.

【Easy Use and Safe】This Wi-Fi router is very easy to use. Install the high gain antennas, charge the router, navigate to topup.smartsimshop.com  to purchase a data plan for the attached SIM card #89852202303200041384, and get Wi-Fi immediately. After setting up the LTE modem router long range and read user manual, you can manage it by entering 192.168.0.1 to log in to the router Wi-Fi management. For network safety, you can manage the connection users, Wi-Fi keywords and more settings for protecting your privacy.

【Cellular and Wired Failover】SIM card Wi-Fi router supports Cellular and Wired dual backup. Wired broadband Internet access first. Automatically switch to wireless cellular Internet access when wired broadband fails. After monitoring the recovery of wired broadband, it will automatically switch back to wired broadband Internet access.