Take Your Cell Service With You. The KING Extend boosts and extends personal LTE / Cell signals up to 32x, providing greater coverage and speeds while supporting multiple users. Ideal for RVers, marine enthusiasts, truckers, campers, outdoorsmen, tailgaters, and all mobile adventurers looking for cellular connectivity. The KING Extend Booster works with all U.S. carriers and does not require an extra monthly service fee. The booster also comes with the most versatile offering of mounting features in its class, with roof, pole, and ladder mount options all included. Powered by WeBoost, the KING Extend has been independently tested, delivers proven quality, and is trusted by first responders on the job.• Works with all US carriers• Reliable signal and faster data• Extended cell phone coverage• No additional contract• Boosts voice and data range• No internet required• 3G / 4G / LTE coverage• No monthly fees• Supports multiple users simultaneouslyDimensionsInside Antenna: 5.25" x 1.5" x 1.5"Outside Antenna: 7.5" x 2.6" x 2.6"Signal Booster: 6.25" x 4.5" x 1"Includes• Booster• Outside Antenna• Inside Antenna• 20' Cable• Mounting Bracket• Ladder / Pole Mounting Hardware• AC / DC Power Supply• Instructions Works with all US carriers No extra monthly service fee Versatile mounting options | KING KX1000 Extend LTE / Cell Signal Booster