LTE / Cellular Solutions

Cell Phone Signal Boosters


Life on the road shouldn't mean sacrificing the connections that matter most. The KING Extend™ cell phone signal boosters amplify and boost your cell signal when bars are low and help ensure that you're never more than one call away from the people you love.

Introducing Our Latest Cellular Innovations.

Goodbye dead zones, hello friends & family.


Stay Connected, Live Free: Your Passport to Adventure

Enhanced Connectivity: The device offers a multi-carrier 4G/LTE router and Wi-Fi extender, using VSIM technology to acquire the best signal among all major carriers. Ideal for RV travelers looking to ensure constant internet availability.


High-Speed Internet Access: With 2 high-gain MIMO LTE antennas and Category 7 LTE modem, the KING Passport provides speeds up to 300Mbps, ensuring fast, lag-free internet access.


Supports Multiple Devices: With 4 MU-MIMO Wi-Fi antennas, the device can support connectivity for up to 32 separate devices simultaneously, making it perfect for large groups or families.


External LTE Antenna: It can connect to external LTE antennas and local Wi-Fi sources, increasing your connectivity options.


Flexible and Affordable Monthlu Data Plans: Data plans are designed for a variety of users, ranging from casual surfers to remote workers, offering flexible options to suit your internet consumption habits.

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Take your cell service with you anywhere with the KING Extend Go - our most versatile cell booster yet! With multiple portable and vehicle antennas/mounts plus a collapsible tripod, you can set this powerful booster up wherever you go. Designed for RVs, trucks, travel trailers, delivery vehicles, outbuildings, fish houses, tiny houses - includes all you need to boost your cell phone service EVERYWHERE you go. This versatile cell phone signal boosting kit comes with both 12V and 110V power supply. Can be used while parked and in-motion, and it boosts 5G and 4G LTE / 3G LTE voice and data signals.

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Introducing the KING Extend Pro - featuring our most powerful booster yet! The KING Extend Pro boosts and extends your cell signal, providing greater coverage and speeds for all your mobile and data applications. Designed for RVs, trucks, travel trailers, ice houses, and horse trailers. Supports multiple users and all cell phone/hotspot devices and carriers. This powerful amplifier kit comes with roof and ladder mounting brackets, and can be used while parked and in-motion. Boosts 5G and 4G LTE / 3G LTE signals for voice and data.

Improve your Cell Phone Signal

Do you struggle with weak cell signal strength? If so, a cell phone signal booster is the answer. Cell phone boosters provide consistent, reliable cell service that doesn’t require any monthly or subscription fees! If you often travel to areas where you are too far away from the nearest cell tower to pick up full bars, then a cellular signal booster is the product for you. Watch your signal bars go from one to five instantaneously, and say goodbye to dropped calls and bad signal coverage areas for good. Learn more about the benefits of RV cellular signal boosters.

Cell Phone Booster FAQs

Let us help you answer your most frequently asked questions about cell phone signal boosters, so you can decide if one of our cell signal boosters is right for you!

What is a cell phone signal booster and how does it work?

Cell phone signal boosters work by picking up existing outside signals from the nearest cell tower through an outdoor antenna, passing the cell signals along through a signal amplifier unit, then broadcasting them through an inside antenna. KING signal boosters take low or moderately usable cell signals and turn them into a usable signal, allowing you and your whole family to stream, make calls, and surf the internet. Our cellular signal boosters work to amplify 5G signals, as well as 4G LTE and 3G LTE.

KING cell signal boosters do not require an additional subscription or plan, they work to boost the signal for your existing cell plan. Signal Boosters make it easier for multiple users to access a stronger cell signal and faster internet connection.

What is an indoor cell phone signal booster?

The indoor antenna is the part of the cell phone booster that repeats the signal inside your space and allows you to pick up the newly boosted cell signals. The indoor antenna is not directional, so as long as you are within a certain amount of square feet of it (distance depends on the antenna), you will be able to pick up its signals from any direction!

Why do I need a cell phone signal booster?

Weak cell phone signals, primarily caused by proximity to the nearest cell phone tower, can cause slow internet browsing and streaming speed, poor reception, and dropped calls. You need a cell phone signal booster if you frequently suffer from poor reception and data speed.

Cell phone boosters are particularly useful for RVers, or those who frequently travel on the road and use the internet for their work or streaming needs. Boosters can also be helpful for cabins located in remote areas, hunting and fishing houses, cars and trucks, and more. Many people who use a hotspot to connect to the internet for their work also benefit from having a booster for their homes and offices.

Do you live full-time or part-time in your RV? Do you require powerful internet and data strength and speed for working (or even homeschooling) from on the road? Struggle with poor signal strength in remote areas? Let us help you find the right cell phone signal boosting fit for your family.

How do I choose the best cell phone signal booster for me?

KING has two great mobile signal boosters to choose from, depending on what you are looking for.

If you are always on-the-go and looking for a cell phone signal booster that is completely portable and has everything you need for all the places you may need to boost weak signals, then the KING Extend Go Multi-Use Portable Cell Signal Booster is the one for you. This versatile cell phone signal booster kit comes in a convenient carry case that allows for easy transport. It also comes with TWO sets of indoor and outdoor antennas, a foldable tripod for easy set up anywhere, home and car power supply (12V and 110V power), and includes mounts for RV roof/ladder, however no mounting is required! Includes everything you need to amplify the signal on-the-go, wherever you are. This powerful signal booster is a one-time only purchase, so no monthly fees or subscriptions required, and it works both while parked and in-motion. This first-of-its kind product is the most versatile out of any of the other cell phone signal booster kits on the market.

If you are looking for a simpler mobile booster that will work for your RV or other indoor space, but you are able to mount it and don’t necessarily need all the portable aspects of the KING Extend Go, then check out our KING Extend Pro Cell Signal booster. With hefty uplink power, this cell signal booster features the same premium amplifier as the Extend Go (powered by WeBoost), but it only includes one set of indoor / outdoor antennas and does not include a car / tow vehicle antenna set. The KING Extend Pro is ideal for RVs, trailers, cabins, tiny homes, pull barns, fishing or hunting huts, and more. It includes ladder and roof mounting brackets, and can be used parked and in-motion. Just like the KING Extend Go, this powerful signal booster is a one-time only purchase, so no monthly fees or subscriptions required, and it works both while parked and in-motion.

Does a cell phone antenna booster work with different carriers and mobile devices?

Yes! Our cell phone signal boosters work with ALL U.S. cellular carriers and mobile / hotspot devices. They even work for multiple users and cellular devices simultaneously, so you can boost your data speed on all your devices! Use with any major carriers - mobile Sprint, Verizon, T-Mobile, and any other carrier you can think of! Our amplifiers are agnostic, meaning they don’t care where the signal is coming from, they boost it all.

What are RV cell signal boosters?

If you are looking to boost signal strength inside your RV, then one of our cell signal boosters is for you - so that you can improve cell signal strength wherever you roam, especially in weak signal areas. These signal boosters work through an outside antenna, which picks up weak signals, then transmits the cell signal inside to an amplifier. The amplifier then transfers the boosted signal to the inside antenna which broadcasts the boosted signal throughout the coach, allowing you to enjoy the best cell phone signal coverage available. For the best cell phone booster for RVers, look no further than the KING Extend lineup.

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