ZOOM Wireless-N Router for LTE, 4G, 3G, DSL, Cable Internet Modems and Smartphones (4504) Share your mobile broadband connection with computers, phones, tablets and other Wi-Fi devices Works with Android smartphones, iPhones, and compatible LTE. 4G, and 3G modems Also works with any DSL or Cable modem that has an Ethernet port Permits automatic backup to mobile broadband if a cable or DSL connection fails Improve your cellular data connection by placing the model 4504 where your cellular connection is best and complete the connection through Wi-Fi Better than smartphone hotspots in wireless range, security, compatibility and smartphone battery drain Wireless-N range is typically up to 1000 feet outdoors, indoor range varies depending on walls and other obstructions The unit carries a one year warranty and USA- based support from Zoom Telephonic, a Boston-based manufacturer of communication products since 1977.