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Sleek 4G Amplifier Cradle Kit, +26dB on all 4G - 813426

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Quint-band cradle amplifier for all 4G/3G/Edge North American networks, single-user





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2 Years

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$130.00 (You save $109.95)

This item has been upgraded to the all new US version Wilson 460107 Sleek 4G.


Friendly Wilson Amplifiers Message: The Wilson 813426 Sleek 4G has been discontinued by the manufacturer and is replaced by the Wilson 460107 Sleek 4G, the new, improved, and FCC-certified 2014 and beyond model. 


The new quint-band cradle signal booster from Wilson is a vehicle solution that amplifies cellular signals in  the 700 MHz, 800 MHz, 1700MHz, 1900 MHz, and 2100MHz frequencies.  It works with AT&T's 4G LTE network, Verizon, T-Mobile, and Sprint's LTE network.  To maximize efficiency of 4G band use, this advanced Sleek has a manual switch that allows the user to select between 4G AT&T and 4G Verizon bands.  All other 4G, 3G, and 2G frequencies will work equally well on both band selections.  It also works with most 2G and 3G networks. It provides a gain of up to 29dB, delivers more than 20 times the power of a typical cell phone, and is designed to keep your cellular device connected even in weak signal areas, minimizing occurences of dropped calls and improving data transfer rates. 

The cradle is a signal amplifier which securely holds your phone, mounts on your vehicle's vents, and is physically connected to a 4-inch external antenna with a 10-foot coaxial cable.  The cradle antenna requires direct physical contact with the back of your cell phone.  Optional accessories are available to mount your Sleek on the dashboard or cup holder; there is even a kit that allows you to use your Sleek at home at the office.


  • Boosts 4G, 3G, and 2G signals on all major carrier networks in North America (iDEN & WiMax not supported)
  • Includes manual switch that selects between 4G Verizon & AT&T bands (all other 2G, 3G, and 4G networks operate on both settings)
  • Provides reliable voice and data streams in weak signal areas
  • Enhances your phone's power by over 20 times
  • Extends the battery life of your phone
  • Simple, fast installation
  • FCC approved 
  • This amplifier is also available in the following versions: 
  • Verizon 4G LTE (815126)
  • AT&T 4G LTE (815326)
  • IC-approved Canadian carriers (Roger, Telus, and Bell) (812726F)

Technical Specifications


Frequency  698-746MHz  |  746−787 MHz  |  824-894 MHz  | 1850-1995 MHz  | 1710-2155 MHz 
Uplink         27.9        |        28             |       28.6          |     26.6              |       28.2
Downlink        3.1          |       3.6             |       2.4            |     9.2               |        9.4
Noise Figure  3.0 dB nominal
Power Requirements     5.5V DC, 2.5 A 
Connectors  SMA Female







Sleek installation is very user-friendly and shouldn't take more than 30 minutes. Sleek amplifier systems have two separate components which need to be installed and connected: the amplifier cradle and the exterior antenna. The amplifier cradle includes both the amplifier and the interior Ì´Ì_ÌÎ̝ÌÎådirect-connectÌ´Ì_ÌÎÌÌ´å antenna in a convenient, phone-holding design.

First, install the adhesive mount in the desired vertical position of your dashboard (not on your air bag cover) and adjust the cradle arms to fit your phone. Allow 24 hours for the mountÌ´Ì_ÌÎ̴̝åÈs 3M adhesive to set before attaching the amplifier cradle to the mount. The included 5V car cigarette lighter power supply with a 3-foot USB/USB-mini cable will be used to power the amplifier. Additional 5V AC wall power supplies and 5V DC hardwire vehicle kits are available. Use the bottom mini-USB port on the cradle as the power port (so both power cable and antenna cable exit the cradle at the same angle from the bottom).

Second, install the magnet-mount exterior antenna (or optional trucker/marine antenna) in the desirable position in the center of your car roof or trunk (at least 12 inches away from other antennas and 6 inches away from windows or sunroof). The strong, rare-earth magnet will securely hold the antenna in place. The antenna cable is thin enough to feed under the door rubber seal and through the door frame.

Finally, connect the exterior antenna to the amplifier and power on the amplifier cradle. Once connected and powered, your system will boost any compatible phone/network. A green light on the side of the amplifier indicates optimal operation. A red light indicates that an automatic shutdown has taken place. This is either due to the exterior antenna and amplifier cradle being too close, or being too close to a cellular tower. The Sleek cradle systems require direct physical contact with the back of your cell phone, so you must use hands-free calling or the speakerphone on your device to benefit from the signal amplification.

The optional home/office accessory kit (included in some kits) allows for easy desktop installation and vehicle-to-building mobility. The amplifier-only option does not include an exterior antenna.

Product Videos

Sleek 4G Cellular Signal Booster ()
  • Video Info
    Sleek 4G Cellu...
  1. Cell Phone Signal Booster ratings and reviews

    Posted by Unknown on 17th Mar 2014

    I have tried several types of signal boosters. The area that I am in is very flat and more than 15 miles from the nearest cell tower and really not in the line of transmission. The Wilson unit worked very well and allowed cell calls that previously was only marginal.

  2. 4G LTE ratings and reviews

    Posted by Ray - Iowa on 15th Mar 2014

    I received this about a week ago and have been trying it out. So far I am not impressed. It dosnt really amplify the signal much, and the data transfer speeds haven't really shown improvement. I am trying to use it some and see if it maintains a more steady reliable signal. Also it gets very hot, if you touch the metal antenna connection it is very uncomfortable to hold on to it (ouch). I called tech support and they had me check a couple things and said it was working, Also said I should not expect much from a weak noisy signal? They did recommend buying different antennas to see if that would help (more money). Didn't get to discuss much with the tech cause he said it was time for him to go home and I should call back the next day, they did try to call me the next day but I was not available. So far I sure don't see where this is worth the money I paid. Maybe it is defective ? (heat?) Not sure, I will keep trying it and see if I can get back with tech support when they don't have to go on break, go to lunch, or leave for the day. I have not tried to plug the phone into the side usb so it will stay charged yet cause its getting so hot now I don't think its a good idea. Hopefully I can get back on this review and update it as I find out more - especially if it proves to do what I bought it for --- improve signal strength and data speed. (and it dosnt catch on fire)

  3. 4G Sleek ratings and reviews

    Posted by Unknown on 25th Feb 2014

    The signal is really good, this is actually the second one we've bought. The one that I just purchased for my boyfriend seems to have some issues with the antenna & power connection getting hot. The antenna connection gets so hot you don't want to leave your finger on it to long. The dash behind the booster is also getting pretty warm. The one in my vehicle doesn't have this problem. How do we take care of this issue?

  4. Signal Seems to Jump Up and Down with the Sleek Turned On ratings and reviews

    Posted by Tom / Chicago on 17th Feb 2014

    Before I had Sleek the signal was steady to move up and down while driving. Now it seems to drop to 1 or 2 bars then suddenly jumps to 4 or 5 bars.

    Without the sleek it would be 3 to 5 bars. I do live in the city where there is a strong signal everywhere. Maybe my results will be better if I travel to more rural areas. I will keep trying it out.

  5. 4G Sleek ratings and reviews

    Posted by Chas on 18th Dec 2013

    So far so good like the enhanced signal - if it continues to perform well we will buy two additional antenna's for our vehicles - so that we are not constantly dragging everything in and out of the cars and house.

  6. Works great! ratings and reviews

    Posted by Unknown on 26th Mar 2013

    Easy to install, bumped signal from 2 or 3 bars to 5 bars (max) immediately.

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