SureCall~Fusion2Go MAX The most powerful all-carrier, multi-user cell phone signal booster for in-vehicle use. SureCall's most popular vehicle kit boosts voice, text and 4G LTE data signals for multiple users and features 2XP Technology that provides twice* the uplink power over the closest competitor to maintain a strong connection to the cell tower in the weakest signal environments. *Independent testing by CKC Labs confirms that the Fusion2Go 3.0 provides 2X more uplink power and faster data speeds compared to the closest competitor. Includes exterior magnet-mount antenna with built-in booster equipped with ERT technology, interior Fusion2Go booster, patch antenna, cables , 12V DC power supply and quick install guide