Frequently Asked Questions

  • How does Reach Antenna work?
    • When applied directly to the back of your phone, the patented, micro-thin gold Reach Antenna automatically pairs with your phone’s antenna and immediately expands the antenna system. It does this through an engineering technique known as electromagnetic coupling.

      The size and shape of Reach Antenna is engineered to resonate at specific cell phone frequencies to enable superior received and transmitted signals. The supplied installation tray ensures that the Reach Antenna will be precisely positioned on the phone for optimum coupling.  
  • Is the Reach Antenna verified by a third party?
    • Reach Antenna was tested at a CTIA (Cellular Telecommunications Industry Association) Authorized Test Lab. It was subjected to the same CTIA-mandated testing methodology required of all cell phones.

      Reach Antenna is optimized for hand-held use. Results show that Reach Antenna improves LTE signal by up to 1.5x in handheld test mode.

  • What is the Reach Antenna made of?
    • Reach Antenna is an FR4 circuit board clad with an antenna pattern of copper, nickel, gold & ink uniquely tuned for specific cell phone models. The adhesive is a 3M repositionable tape.
  • Can I use Reach Antenna on a different phone model than it was designed for?
    • No. Every version of Reach Antenna is custom-engineered to fit a specific phone model and work specifically with the unique antenna structure of that phone.
  • Why is more signal strength important?
    • Reach Antenna delivers up to 1.5x stronger LTE signal strength, which is important because a stronger signal increases the possibility for:
      - Greater coverage so you can stay connected farther away from a cell tower.
      - Faster data speeds while browsing the web, streaming music, video chat and more.
      - Better battery life through more efficient antenna performance.
  • Can Reach Antenna give me more “bars”?
    • Even though Reach Antenna is always working for you, you may not see an increase in bars in every situation. Your bars are highly dependent on your local signal conditions, and the “scale” of the bars may not show increases in reception that fall in between one “bar” indicator and the next. Also, performance results may vary based on case type, carrier, and environmental factors.
  • Can Reach Antenna improve the battery life of my phone?
    • Poor signal strength forces your phone to work harder to communicate with a cell tower by transmitting more power, which shortens the battery life of your phone. Because Reach Antenna improves the signal strength of your phone, it communicates more efficiently and this can conserve battery life.
  • Will Reach Antenna work with any case?
    • Reach Antenna is designed to work with most cases, but not with cases that contain metal.
  • Will my Reach Antenna work if I travel internationally?
    • Reach Antenna is optimized for U.S. cell phone networks. Performance may vary internationally.
  • How do I install Reach Antenna on my phone?
  • Will the adhesive damage my device or case?
    • No. The adhesive was specifically designed for ease of removal without leaving residue, while maintaining a strong hold when in use. Please use the supplied removal tool if removing the Reach Antenna to avoid bending it too much while prying it off of the back of your phone.
  • How do I clean my Reach Antenna?
    • The front surface of the Reach Antenna can be wiped with a dry cloth or mild solvent, but never use harsh chemicals or soaps to clean it. Do not attempt to clean the back (adhesive) side of the Reach Antenna.
  • California Prop 65 Warning
    • WARNING: Reach Antenna contains a chemical known to the State of California to cause cancer, birth defects or other reproductive harm.

      For more information about Californial Proposition 65 please visit the website maintained by the California Office of Environmental Health Hazard Assessment:

Warranty and Return Policies

  • Limited Warranty
    • Your Reach Antenna is guaranteed against defects in materials or workmanship, and against breakage from normal use, for 1 year. If your product is defective or broken within this timeframe, please email us at  For NON-WARRANTY questions please email us at

      If you meet the conditions of our limited warranty, we will provide you with return shipping instructions and send you a new Reach Antenna product of equal or lesser value at no charge.
  • Limitations
    • Return and replacement guarantees exclude damage resulting from misuse of, or abuse to, your product. Nor do we cover ordinary wear and tear, such as dirt and smudges that reflect everyday use and do not evidence a product defect. Our guarantees and warranties do not apply to products bought from sources not expressly authorized by Antenna79. We disclaim any warranties of fitness for a particular purposes, and all liability for any indirect, incidental, or punitive damages arising from our products, however obtained, and our limited warranty does not cover under any circumstances the replacement or cost of any electronic device or personal property used in connection with our products.
  • How can I return my Reach Antenna for a refund?
    • Reach Antenna is sold exclusively through Best Buy. If you are dissatisfied with your Reach Antenna purchase, please return the Reach Antenna to Best Buy for a refund within their return policies.