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Sleek 4G-A Amplifier Kit, +26dB on AT&T 4G - 815326

Product subtitle:

Tri-band cradle amplifier for AT&T 4G LTE & all 3G/Edge North American networks, single-user





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2 Years

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DISCONTINUED. See the newest model of this product.
weBoost Drive 4G-S
Cell Phone Booster Kit - 470107

This new tri-band cradle signal booster from Wilson amplifies your cellular signals in the 700 MHz, 800 MHz and 1900 MHz frequencies. It works with AT&T's 4G LTE network and other carriers that operate in those frequencies, and is designed for use in your vehicle. It also works with most 2G and 3G networks. It provides a Gain of up to 26dB and 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 occurence of dropped calls and improving data transfer rates. The Wilson 815326 Sleek® 4G-A Vehicle Signal Booster Kit is perfect for you as a single-user solution if you have an iPhone 5 or Galaxy S3 phone.

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


  • Boost the signal strength of your cell phone or cellular device while on the road
  • Perfect for creating a wireless WiFi hotspot with suitable third-party devices
  • Can also be used at home/office with the optional Home/Office Accessory Kit (see below)


It is easy to install the Wilson Sleek without tools.  Check the specifications sheet and product video for details.
Package Includes:
  • Wilson 815326 Sleek® 4G-A (AT&T) +26dB Vehicle Signal Booster Kit (cell phone or 4G MiFi not included)
  • Wilson 4-inch Magnet Mount with 10-feet of Coaxial Cable
  • 3M Adhesive flexible dashboard mount
Product Features:
  • Simple DIY installation
  • Greatly reduces dropped calls
  • Boost AT&T® 700 MHz LTE as well as 3G & 2G cellular signals on 800 MHz & 1900 MHz
  • Boosts both voice and data communications
  • Provides a strong, reliable signal even in weak signal areas
  • Faster, cleaner 3G & 4G data transfers
  • Delivers more than 20 times the power of your cell phone alone
  • Improves battery life
  • Additional Antennas and Mounts sold separately
  • FCC approved
  • This amplifer is also available in the following versions:
  • Verizon 4G LTE (815126)
  • 4G LTE/AWS for most major US carriers (AT&T, Verizon, T-Mobile, and Sprint) (813426)
  • IC-approved Canadian carriers (Roger, Telus, and Bell) (812726f)

Technical Specifications

Frequency  824-894 MHz | 1850-1990 MHz  | 698 - 716 MHz , 728 - 746 MHz (Band 12 & 17)
Gain        20 dB       |       26 dB          |                       20 dB
Max Uplink Power      1,240mw    |     1,800mw        |                      316mw
Noise Figure (nominal)        3.0 dB     |        3.0 dB        |                      5.0 dB    
Flatness  ±4 dB
Power Requirements     5V 
Connectors  SMA Female
Dimensions  2.25 x 4.25 x 2.5 inches (5 x 9.5 x 5.6 cm)   
Weight  2.5 oz (0.07 Kg)
Documentation  Specification Sheet









Sleek installation is very user-friendly and shouldnÌ´Ì_ÌÎ̴̝åÈt 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.
  1. Amplified ratings and reviews

    Posted by E. Newman / Denham Springs, LA on 10th Sep 2013

    Sleek pushes the bars up in areas not too close to cell towers. Wish antenna was a little taller.

  2. It allowed me to use my phone at camp ratings and reviews

    Posted by Kimball Clark Gallipolis, OH on 27th Jul 2013

    We have a summer camp where the cell phone coverage is not good. I have never been able to use my phone there. Some people with certain phones get a little service. Using the amplifier I got 2 and three bars. I hope it lasts.

  3. It actually works ratings and reviews

    Posted by Brian from steubenville OH on 15th Jul 2013

    I went from "NO SERVICE" to 4 bars at work. It totally solved my signal problem.

  4. The cradle works ratings and reviews

    Posted by Betty Blazic on 12th Apr 2013

    Seems to work a lot better than the other box outfit I bought from Wilson. Wish I knew what to do with the other box.
    Good that the brackets are adjustable by just sliding them into another slot.

  5. Works great ratings and reviews

    Posted by George Long on 7th Jan 2013

    It was easy to install and worked great, before where I had 1 bar and sometime searching I had 3 to 4 bars 4G with the booster on.

  6. Doubles my signal ratings and reviews

    Posted by J. Gokey on 6th Nov 2012

    Everything is good except for brackets for holding phone.

  7. Takes Cell Service to a professional level ratings and reviews

    Posted by Bob J on 31st Oct 2012

    I need to get parts price's for customers wherever I am. The Wilson booster gives me at least three bars now in areas where before I had none. And in fair service areas 4G is like being on wifi.

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