These are brand new in the box. Ready for use on AT&T (or Liberty in PR). New in box includes Unit with Manual/ Battery and Charger. SIM card IS included! The Moxee K779HSDL is a mobile hotspot that can connect up to 16 WiFi-enabled devices. It has a long-lasting 2300mAh removable battery that can stay on standby for up to 451.2 hours and is usable for up to 8.25 hours, 256MB internal memory with a 4G LTE connection making sure your internet connection is at top speed. It is a lightweight device with Dual-band WiFi support. 4G LTE Bands 2, 4, 5, 12, 41, 66 NOTE:It is not necessary to reset the equipment if the client uses it with the sim card it comes with. But if you are going to use a different sim card, it is reset by removing the cover, pressing the button near the battery for 10 seconds and that's it.