Sapido BRB72n 3G/4G Wireless-N Router with Built-in Rechargeable Battery, AP, Wi-Fi AP, WISP, Smart Wi-Fi Router with a free Mobile App for remote security monitoring, file sharing, and Wi-Fi Airplay A Smart Wi-Fi router with a Free Mobile App that allows you to remotely monitor your home/office, transfer files among your Wi-Fi enabled devices, and Airplay your favorite music A Mobile 3G/4G router that turns your smartphone (e.g., iPhone, Android, Blackberry) or USB adapter into a hotspot; It is also a WiFi Access Point and Repeater/Range Extender for extending the existing signal range and strength Want to see what a Smart Wi-Fi network look like? Check "What is a Smart Wi-Fi network" in "Customer Questions & Answers" section of this page Interface: 10/100 Mbps WAN/LAN Port x 1, USB 2.0 Port for Camera, 3G modem and smartphone, 1 micro USB port. Buttons: Quick Setup Security Button; Mode Switch Button (Router, Access Point, and WiFi Access Point mode); Reset Button; Supports Windows, MAC, Linux OS. External Power Supply: AC Input: 100-240V, DC Output: 5V/1.2A; Built-in Battery: 1650 mAh x 1. It can be powered through its power adapter, built-in lithium battery, or laptop/car charger through its micro USB port. The battery can also be used as a mobile power supply for other devices (e.g., smartphones).