
Contents:
Accessories ...............................................................1
How it Works ..............................................................2
Vehicle Installation Diagram ..................................................2
Install the Outside Antenna ...................................................2
Power up the Wilson Electronics Sleek 4G ......................................3
Adjusting the Sleek 4G Arms .................................................4
Understanding the Sleek 4G Lights ............................................4
Troubleshooting ............................................................4
In-Building Installation .......................................................5
Warnings ..................................................................6
About Wilson Electronics .....................................................6
Signal Booster Specications ........................................Back Cover
To boost your phone’s signal power, the phone must be placed in the Sleek 4G cradle. For best
results, use a Bluetooth® headset or hands free device, while the phone remains in the Sleek 4G.
Cell Phone Signal Booster with Built-in Antenna
Appearance of device and accessories may vary.
Note: This manual contains important safety and operating information. Please read and follow the
instructions in this manual. Failure to do so could be hazardous and result in damage to your Sleek.
U.S. Patent Nos. – D626,953; 7,684,838; 7,221,967; 7,729,669;
7,486,929; 7,729,656; 7,409,186; 7,783,318

1
Contact Wilson Electronics Technical Support Team with any questions at 866-294-1660
or email: tech@wilsonelectronics.com. Mon.- Fri. Hours: 7 am to 6 pm MST.
AC Power Supply
*(859969)
Gooseneck
Suction Cup
Cradle Mount
(901120)
Cup Holder
Cradle Mount
(901130)
Adjustable Desk Mount
*(901137)
Accessory Kit
Additional Accessories for the Sleek
®
4G
Antenna Window Mount
(Used with Mini-Magnet Mount Antenna)
*(901128)
Mini-Magnet
Mount Antenna
(301126)
(included in some kits)
Vehicle Dash Adhesive
Mounting Bracket
& Adjustable Arms
5.5V / 2A
Power Supply
& USB cable
(859999)
FCC requires to never use the cell phone in the cradle next to your ear.
* All 3 available together in the Home Accessory Kit - 859970 (carrying case included)
Appearance of device and accessories may vary.
(This product is not marketed by Verizon Wireless or AT&T)
Mobile Power
Supply
(859984)
Inside this Package
Sleek® 4G operates on (Band 12/17, 13) 700 / 800 / AWS 1700 - 2100 / (Band 25) 1900 MHz
Model #2B3425 FCC: PWO2B3425
NOTE: If product #813425 was ordered, package will only include Sleek 4G wireless Signal Booster cradle,
power supply, and mounting bracket.
Vehicle Dash Mounting Kit
(901134
)
(included in some kits)
Adhesive Mount
Vent Clip Mount
General
Your Wilson Electronics Sleek 4G has been carefully engineered to signicantly improve the
performance of your phone. Together with an Outside Antenna, the Sleek’s state-of-the-art circuitry is
designed to increase your phone’s signal to and from the cell tower. The Sleek 4G reduces disconnects
and dropouts and increases data communication rates on 2G, 3G and 4G networks.
Sleek® 4G Cell Phone
Signal Booster
Rugged / Screw
Mount

2
Contact Wilson Electronics Technical Support Team with any questions at 866-294-1660
or email: tech@wilsonelectronics.com. Mon.- Fri. Hours: 7 am to 6 pm MST.
NOTE: The cell phone must be placed in the cradle to work properly.
NOTE: See the Warnings section for additional information.
Warning: DO NOT use phone covers that have chrome or any other metallic surface. It may block
cellular signals.
Vehicle Installation
1. Install the Outside Antenna
To receive the best cell signal, select a location for the Outside Antenna that is preferably in the center of
the vehicle’s roof, 12 inches away from any other antennas, free of obstructions, and at least 6 inches from
the rear and side windows or sunroof.
How it Works
With the phone in the cradle and while using a wireless Bluetooth® headset (or hands free device) the
Outside Antenna collects the cell tower signal and sends it through the cable to the Sleek 4G. The signal
is then boosted by the Sleek 4G and sent to the phone. When the phone transmits, the signal is picked
up wirelessly and boosted by the Sleek 4G and transmitted back to the cell tower through the Outside
Antenna.
The Outside Antenna must be installed vertically. Antenna performance will be degraded if the antenna is
not vertical. The antenna cable is small yet strong enough that it may be shut in most vehicle doors without
damaging the cable.
NOTE: For a more professional looking
installation, run the antenna cable under
the door seal. Carefully pull down the
door seal. Run the cable under the seal
and push the seal back into place. This
prevents constant wear and tear on the
cable as the door opens and closes.
The antenna cable is small enough to
easily tuck under the door seal or plastic
molding.
Sleek 4G
w/phone
Sleek 4G w/phone
Outside Antenna
communicates with cell tower
Sleek 4G boosts
signal to and
from cell tower