KING is a company specializing in technology for RVers and outdoor enthusiasts. Historically focused on over the air TV technology, KING has entered into the mobile internet space.
In September 2019, they began offering the King Extend - which they list as powered by weBoost. The King Extend is licensed based off the weBoost 4G-X cellular booster kit.
weBoost released the 4G-X RV kit in April 2017 based on the their then flagship mobile booster. The kit was officially retired from weBoost's line-up in July of 2019 and replaced with the weBoost Drive X RV, which includes our preferred OTR Antenna in a RV form factor instead. The retired kit is now licensed to King.
In January 2021, King introduced the King Extend Pro, which uses the weBoost Drive Reach booster with the weBoost 4G Omni antenna and the weBoost 4G Desktop antenna.
The also intorduced the King Extend Go, which includes everything in the King Extend Pro kit, but also includes a carry bag, 12V and 120V power supplies, a portable tripod, and the Drive Magnetic Antenna.
Product Variations
King Extend
Specifications
- Model: KX1000
- Max Downlink Gain: 50dB
- Max Uplink Gain: 24.8 dBm
- # of Devices Boosted Simultaneously: Multiple
- LTE Bands Supported: 12/17, 13, 5, 4, 2, 25
- Exterior Antenna: weBoost 4G Omni antenna
- Internal Antenna: 4G Desktop Antenna
- Range of Interior Coverage: 6" - 4'
- In Motion Usage: Yes
- Booster Dimensions: 6.375 x 1.125 x 4.35 in
- Warranty: 2 Year
- List Price: $449
King Extend Pro
Specifications
- Model: KX2000
- Max Downlink Gain: 50dB
- Max Uplink Gain: 29.5 dBm (1 Watt)
- # of Devices Boosted Simultaneously: Multiple
- LTE Bands Supported: 12/17, 13, 5, 4, 2, 25
- Exterior Antenna: weBoost 4G Omni antenna
- Internal Antenna: 4G Desktop Antenna
- Range of Interior Coverage: 6" - 4'
- In Motion Usage: Yes
- Booster Dimensions: 6 x 4.5 x 1.5 in / 1.8 pounds
- Warranty: 2 Year
- List Price: $499.99
King Extend Go
Specifications
- Model: KX3000
- Max Downlink Gain: 50dB
- Max Uplink Gain: 29.5 dBm (1 Watt)
- # of Devices Boosted Simultaneously: Multiple
- LTE Bands Supported: 12/17, 13, 5, 4, 2, 25
- Exterior Antenna: weBoost 4G Omni antenna and weBoost Drive Magnetic antenna
- Internal Antenna: 4G Desktop Antenna
- Range of Interior Coverage: 6" - 4'
- In Motion Usage: Yes
- Booster Dimensions: 6 x 4.5 x 1.5 in / 1.8 pounds
- Warranty: 2 Year
- List Price: $679.99
News, Videos & Status
We tested weBoost's original Drive X RV kit in head-to-head testing in mid-2017. Members can view the results, here:
- Cellular Signal Enhancing Field Testing Results (Mid 2017) - Featuring the Drive X RV Kit vs OTR and vehicle.
The weBoost Drive X had been the 'gold standard' of mobile cellular boosters since they came out in 2015, however in May 2019 released the Drive Reach as their new flagship amplifier.
Related News Articles:
Alternatives to Consider
For other booster options on the market worth comparing this model to - here are our featured options:
Boosters are NOT the right choice for all applications.
They make the most sense for devices without antenna ports (like smartphones and tablets), or when in weak signal areas. However, for devices with antenna ports in mild to moderate signal areas - a direct-connected antenna can outperform a booster. And boosters can actually DECREASE data speeds in some conditions - never assume you need a booster on all the time - always test at each location!
For more on this:
Consider the Netgear MIMO Antenna for devices with dual antenna ports. This little $27.49 antenna is worth having in your setup. It our extensive testing, it often beats out boosters for data performance in Jetpacks, MiFis and other hotspot devices.
This Review Contains Additional Member Exclusive Content!
We are Honored to be Member Funded! No ads, no sponsors, no selling (but may contain affiliate links)
Our members fund our in-depth independent reviews.
This entry may contain additional member exclusive content such as testing notes, field testing data, user interface tours, comparisons to alternatives, analysis, tips, videos and discounts.
Members also get interactive guidance, alerts, classroom and more.
Are you a member? Please log in above to access your member exclusive content!
Purchasing Options
Links Provided for Convenience
We do not sell any gear or equipment. These links are provided to make your shopping easier. Unless otherwise disclosed, only Amazon links are affiliate links (see our disclaimer). We request vendors give our members bigger discounts instead of giving us affiliate kickbacks.
Member Discounts - Learn & Save!
Our MIAs get special discounts from these vendors. Members please check for discount codes before ordering. Some vendors offer up to 10% off - you could save more than the cost of your membership on major purchases.
Camping World: Extend | Extend Pro | Extend Go
Amazon: Extend
Cellular boosters can be quite useful for boosting the signal to a smartphone to get a more solid phone call. But when it comes to enhancing cellular data performance, things get more complicated.
Because of a technology called MIMO (multiple in multiple out) that is essential to LTE and 5G data, often times the internal antennas on a smartphone or hotspot don't benefit from an amplified signal. Boosters also only cover a handful of the frequency bands the carries use for data.
But a booster can play a role in a mobile internet arsenal - as they excel during times when you are really far from a tower, or where upload speeds are important (such as video broadcasting).
For more on understanding boosters vs. MIMO - check out video:
For more on signal enhancing, including understanding boosters and the many forms they come in - follow up with our guides:
Mobile Internet Resource Center is founded by Chris & Cherie of