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SureCall Flex-2-Go | SC-DualM-50

SureCall Flex-2-Go | SC-DualM-50

  • Regular price $360.00 USD Sale price$299.99 USD
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SureCall Flex-2-Go Car/ Truck/ Van/ SUV Cell Signal Booster:

  • Boosts voice, text, and 3G signals for all USA & Canada cell carriers.
  • Reduces dropped and missed calls. Boosts 3G Internet speeds.
  • Increases signal strength and extends battery life for all cellular devices.
  • Supports multiple users simultaneously.
  • Sets up in minutes - simple plug and play installation.

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Need installation quote, or help with designing a custom solution? Submit a request for quote.

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Product Description

SureCall Flex-2-Go Car/Truck 3G Signal Booster (USA).

The SC-DualM-50 Flex2Go Vehicle Kit is essential for anyone who wants to stay connected on the road. This Flex 2Go 50db dual-band booster kit is a 12 volt booster that is the most powerful mobile amplifier available. It boosts 2G and 3G signals for all mobiles and devices within the vehicle, to give you a better experience using devices when you're on the go.

This twelve volts booster kit comes with a magnetic antenna, patch antenna, and DC power adapter, and is easily installed and manually adjusted for convenience, without the need for costly modifications to your vehicle. You don't even have to plug your device into a docking station. When the extra coverage is not needed, the SC-DualM-50 becomes dormant to save power.

Signal for text and voice calls are boosted, to make sure you never miss a call or text on the road again. The system also allows for faster data transmission, so you can send texts and enjoy faster better internet connectivity.

This is a fantastic mobile booster kit, suitable for nearly all vehicles.

Top Features.

Suitable for all types of vehicles. Boosts 3G signals for all carriers. Cuts down on dropped calls and improves voice clarity. Speeds up 3G Internet and text. Supports multiple users. Easy to install yourself.

Who's It For?

The SureCall Flex 2 Go 3G Cell Phone Signal Booster is beneficial for anyone who travels frequently, and wants to be able to use their 3G cell phones and tablets in areas where coverage may otherwise be poor. The system works with all types of cell phones with 3G connectivity and with all carriers in the U.S. and Canada.

How It Works.

Mount the magnetic antenna on the roof of your vehicle, where it picks up signals from all of the carriers being sent out by cell phone towers. The signals travel through an amplifier where their signal strength is enhanced by up to 50 decibels. Then, a patch antenna placed inside of your vehicle broadcasts all of the signals. Your mobile device receives the signal from your carrier and instantly has more bars for a better usage experience.

What It Works With.

You can use the SureCall Flex2Go 3G Cell Phone Signal Booster with:

Any make or model of car, van, truck, SUV, limousine or small SUV. Any U.S. or Canadian cellular carrier. Any mobile device that has 3G wireless connectivity. The system operates on frequencies of 850 MHz and 1900 MHz.

Why Is It Unique?

The SureCall Flex-2-Go 3G Cell Phone Signal Booster has a number of impressive features that make it stand out from the competition, including:

Stealth functionality that puts the system in dormant mode, to conserve power when you're not using your device. FCC and Industry First approved for use in the U.S. and Canada. Allows for both manual and automatic adjustments in signal strength. Very easy to install with plug and play operation. Technology that eliminates interference for optimal performance. Industry-leading 3-year warranty from SureCall.

Extra Product Information.

The cell phone booster is made in China. The set comes in brand new retail packaging. The booster carries IC certification. The package dimensions are 10' x 10' x 10'. The package weighs 8 pounds.

This SureCall cell phone signal booster for car is comparable to Wilson Electronics brand weBoost part Drive 3G-X 470111.

From the manufacturer:


  • Boosts voice and text signals for all North American cell carriers.
  • Reduces dropped and missed calls.
  • Increases signal strength & extends battery life for all cellular devices.
  • Supports multiple users simultaneously.
  • Sets up in minutes - simple plug and play install.


Flex2Go for vehicles boosts voice and text for all major North America cell carriers - including AT&T, Verizon, Sprint and T-Mobile. SureCall cell phone signal boosters are ideal for use with hands-free cell phone car systems or Bluetooth devices. 

Dropped calls and slow data speeds are history, as the Flex2Go provides clear and consistent coverage for multiple cellular devices in any vehicle. End the frustration of weak and unreliable cellular signal with the Flex2Go.

Kit Includes: Flex2Go cell phone signal booster, magnetic roof-mounted antenna, interior patch antenna (with Velcro mounting tape) and standard 12V DC power adapter.

SureCall Flex2Go Specifications.

Frequency. Uplink: 824-849/1850-1910 Mhz;869-894/1930-1990Mhz.
Input Impedance. 50 ohm.
Average Gain. 50 dB.
Maximum Gain. 50 dB.
VSWR. <2.0.
Standard Supported. CDMA / WCDMA,GSM,EDGE, HSPA+, EVDO, and all other cellular standards.
AC Power Transformer. Input AC110V,60Hz; Output DC 5-15V.
DC Power. NO.
Maximum RF Output Power. 1 Watt EIRP.
Noise Figure. 5 dB.
Cable. CM174 and RG58 recommended.
RF connectors. FME.
Power Consumption. <9W.
Dimensions. 8" x 1.25" x 5".
Weight. 1 lbs 8 ozs.


Flex2Go Set-Up and Installation.

The signal is received by the outside antenna from the cell tower, then amplified and transmitted to your phone through the inside antenna. When the phone transmits, the signal is received by the inside antenna, then amplified and transmitted to the cell tower through the outside antenna.


  1. Connect the outside antenna to roof of the vehicle.
  1. String outside antenna under door lining and screw the outside antenna to the OUTSIDE connector of the booster.
  1. Place the inside antenna on the side of the driver’s seat or driver’s side column for maximum performance at least eight inches, but not more than 12 inches, from where the cellular device will be used.
  1. Screw inside antenna to INSIDE connector of the booster.
  1. Connect the Power Cord into an AC power outlet.  
  1. Turnon the booster’s power switch. The LED light will glow, indicating that the booster is ready to use. 

Alternate Part Numbers:

  • SC-DualM-50-Kit
  • SCDualM50Kit
  • SC-DualM-50
  • SCDualM50
  • DualM-50-Kit
  • DualM50Kit
  • DualM-50
  • DualM50
Consumer Alert:
Consumer Alert


Customer Reviews

Questions & Answers


Ask a Question
  • How many watts does it have?

    This car or truck booster kit offers up to 1 watt of output power which is very significant considering cell phones on their own can provide only up to 0.6 watt.

Data Sheet / User Guide

Data Sheet

User Guide

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Note: For any signal booster to help, outside signal strength must be at least -110 dB or there must be a clear line of sight to a cell tower that is within twenty miles. Before ordering, please check outside signal level in decibels or ensure that you can make and hold a phone call at any good spot outside where you can mount an exterior antenna. Square footage stated in signal booster listings is based on good signal outside. If it is any weaker, the boosted sq. ft. area will be considerably lower, accordingly.

Kevin K. of Anderson, California gave the following review:

Website is easy to use with plain straight forward info but could have had more on testing signal strength to make sure you get a strong enough booster.

Therefore, please note that stated sq. ft. coverage is based on good signal outside. For best results: If outside signal is weak, we suggest choosing the next higher sq. ft. coverage kit. If outside signal is very weak, we suggest choosing the kit with even more higher sq. ft. range bracket. Basically, higher the sq. ft. bracket, the more powerful the signal amplifier with greater Gain as well as higher uplink and downlink output power.

If outside signal is too weak (weaker than -110 dB), submit request for cell coverage solution assessment. Upon receipt of questionnaire, we will perform residential or business site survey. This will help us determine the system that is needed to improve cell coverage. Then, we will create system design using that system such as femtocell, active or hybrid distributed antenna system (DAS), or other carrier feed signal enhancing method available that will work at your signal-challenged location. Finally, we will schedule for installation after equipment and installation service quote has been approved by you, or your company.

For non installation-included kits: Most home / office / building cell signal booster kits only include bracket to mount exterior antenna on outside wall, edge of roof, or existing pipe up to 2 inches in diameter. Mounting pole not included with most kits, unless stated specifically that it is included for free. Therefore, a mounting post must be purchased separately if you will require it to mount exterior antenna.

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