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Your cart is empty.The KING Extend Go is our most versatile cell booster yet! With multiple portable and vehicle antennas/mounts plus a collapsible tripod, you can set this powerful booster up anywhere. Designed for RVs, trucks, travel trailers, horse trailers, delivery vehicles, outbuildings, fish houses, tiny houses - includes all you need to boost your cell phone signal EVERYWHERE you go.
Neil Dillingham
Reviewed in the United States on May 27, 2022
A 700 dollar waste of money for me. I have 2 or 3 bars of signal at my holiday home - this made no difference to number of bars, speed test results or call quality at all.
HiS Director
Reviewed in the United States on May 1, 2022
The Verizon registration website quoted by KING in their manual doesn't NOT exist, and without a Verizon registration the KING KX3000 cellular booster will not work!! A simple call by the KING company to Verizon could have explained this them. I spent at least 2 hours talking to three (!) different Verizon technical support people to confirm this. A waste of my time, and theirs, and VERY in-accurate advertising on the part of KING. DO NOT BUY THIS!
Nate Camper
Reviewed in the United States on November 15, 2022
So I will say the King Cell booster was easy to set up. It comes with the tripod to mount the outside signal. The tripod is not as strong as I thought it would be. The legs seems somewhat flimsy. I set it up and I had winds of 9-10 mph and the tripod continued to hold the booster up. So I would say the tripod did it’s job there. It was leaning some but it did it’s job. I also thought the tripod would be taller. Now the results. So I used it with my RV on a hunting trip. The area I was in I only had 1 bar at best. With the booster I had 1-2 bars but the speeds were much improved when I ran a speed test. I went from 6-7 meg download to about 29-30 meg download. The calls were a lot better as well. So while the phone did not show a huge increase in the signal the performance was a lot better. I will admit that I don’t know that it is worth the price. I have not installed the vehicle booster yet so I will hold my final thoughts until once that is complete and I have tried it.
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