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12-inch Magnet-Mount Antenna w/SMB Connector Bundle - 311125-B
12-inch Magnet-Mount Antenna w/SMB Connector Bundle
Model: #311125-BWide-bandSMBOmni-directional
(You save $15.98 )

12-inch Magnet-Mount Antenna w/SMB Connector Bundle - 311125-B

IN STOCK: Ships today, if order is placed before 3PM CST.
(You save $15.98 )
FREE Standard Shipping. Expedited Shipping available.
No Tax For Orders Outside Texas.
90 Day Money Back Guarantee.
2 (Two) Year Warranty.
  • Omni-directional 3G & 4G antenna
  • Works with weBoost Drive Sleek
  • Bundle with SMB Female to SMA Female connector
  • Most popular car roof antenna
  • Up to +6.1 dB gain

Product Details

12-inch Magnet-Mount Antenna with SMB Connector Bundle

No more annoying dropped calls, poor call quality & slow Internet!

This exclusive bundle is created to connect the 12-inch magnet mount antenna with the new weBoost Drive Sleek 4G Booster.

  • Omni-Directional 3G & 4G antenna.
  • Works with car signal boosters.
  • Magnet-mount, SMA-Male connector.
  • Most popular car roof antenna.
  • Up to +6.1 dB gain.

The Wilson 12” Magnet Mount Antenna is a 50 Ohm antenna used to pull in existing 3G & 4G LTE signals from your nearest cell tower source. It’s features up to +6.1 dB gain.

Designed for outside vehicle installations for a car, truck, RV. or boat.

Backed by a 2-year manufacturer warranty, 24-hour US-based customer support (Texas!), 30-day better signal or money back guarantee, and lifetime technical support.

Goodbye, no-signal frustrations.

What's included in the kit?

Each kit comes with everything you need for a complete installation.

12-inch Magnet Mount Antenna with 12.5 ft RG174 CableItem # 311125
SMB connector
SMB Female to SMA Female Connector

Product Specifications

The Wilson 12” Magnet Mount Antenna is a simple, effective solution to maintain continuous communication for all cellular-enabled devices – smartphones, tablets, etc - in your cars, pickup trucks, vans, and SUVs.

FREQUENCY 700-800 MHz: 1.9 dB;
824-894 MHz: 5.1 dB;
880-960 MHz: 3.1 dB;
1710-1880 MHz: -4.0 dB;
1850-1990 MHz: 6.1 dB;
2110-2170 MHz: 2.3 dB
MAX POWER 50 Watts
CABLE 12.5 ft / 3.8 m
DIMENSIONS 12.5 x 1.5 in / 31.7 x 3.8 cm
WEIGHT 4.2 oz / 0.119 kg
311125 Spec SheetSpecification Sheet (PDF)

Installation Instructions: Videos

Install Signal Booster in a Car

Install The Signal Booster In a Car

Install Signal Booster in a Truck

Install The Signal Booster In a Truck

Install Signal Booster in a RV

Install The Signal Booster In a RV

Install Signal Booster in a SUV or Minivan

Install The Signal Booster In a SUV or Minivan


If you have questions or require assistance, please call our customer and tech support at 1-800-568-2723 or email at We will be happy to assist you in every step of the way.


We're in the business of providing reliable connection– not selling boxes, not selling snake oil, and definitely not losing your trust.

First 100% Guarantee: We provide a 90 Day Money Back Guarantee on all new weBoost products (30 Days for refurbished/renewed products). No other company does that. Take your time and make sure you’re happy with the solution. We’re here to support you if you have any questions. That's the Wilson Amplifiers difference.

Second 100% Guarantee: Anytime during your 2-year manufacturer's warranty (1 year for refurbished/renewed), should your unit not perform to its usual standards, contact us, and we'll take care of it. We're not here for the one-time sale. We're here for the lifetime supporter. We want to be loved.

Third 100% Guarantee: Lifetime technical support. You’re our guest. Whether it’s finding cell tower locations, learning about new cellular technology, or asking about installations, we’re here to help. We’re also fond of football debates and talking about all things food.

Oh, and we also provide FREE shipping for everything 😉

Questions or Comments? Contact Us.