Cell Phone Signal Booster 4G LTE T-Mobile AT&T Cell Phone Booster Amplifier ATT Mobile Signal Booster 700Mhz Band 12/17 US Cellular Signal Repeater for Home - No More Dropped Calls for Remote Area


  • 【Better 4G LTE Data and Voice】 - JACOOL cell phone signal booster is designed to work with AT&T T-Mobile 4G LTE Band 12/ 17 network frequency, Uplink: 698MHz-716MHz, Downlink: 728MHz-746MHz. 65dB High Gain signal booster aims to help you reduce dropped/ missed calls, improve battery life, offer higher audio quality and faster data and streaming.
  • 【Support All Cellular Devices】 - The cellular repeater boosts cell service for iPhone, Samsung, HTC etc all brand phones and support multiple users at the same time; offering all users crystal clear calls and uninterrupted data, enjoy a more relaxed family life or a more productive workplace.
  • 【Wide Coverage Upto 4000sq.ft.】 - The signal amplifier comes with High Gain indoor panel and outdoor yagi antennas, it will bring you good cell connection cover up to 4,000 sq. ft. in your home, office, villa, garage, basement and so on. The outdoor antenna should be pointed to the near ATT tower to get better reception, download "open signal" app.
  • 【Excellent Features & Easy Setup】 - The cell booster has the functions of Automatic Gain Control, Inactivity Mode and Oscillation Elimination etc., once it is well installed, it can adjust itself for better performance no matter how signal condition changes. Requires no technical experience, plug and play, easy and convenient to install.
  • 【What You Get & FCC Approved】- 1*Mobile Phone Signal Booster, 1*Outdoor Yagi Antenna, 1*Indoor Panel Antenna, 1*50ft Coaxial Cable, 1*16ft Coaxial Cable, 1*Power Adapter, 1*User Manual. With FCC authentication certificate, and three-month replacement service with defective product.



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Boost Cell Signal from 1-2 Bars to 3-5 Bars, Faster 4G Data Speed, No More Dropped Calls!

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Say Goodbye to Poor/ Weak Signal

Support 4G LTE AT&T T-Mobile 700MHz Band 12/17

This cell phone booster is designed to work with ATT T-Mobile 700MHz 4G LTE Band 12/ 17 network frequency.

Boost 4G LTE Data Signal

The booster kit amplify existing signal to more bars, then you can experience much faster high-speed 4G LTE internet; Coverage can be up to 3500-4000 sq.ft..

Stop Missed/ Dropped Calls

The cell amplifier will improve call quality and maintain a better voice environment for you, help stop missed or dropped calls.

Technical Points

  • 1. Operation Frequency:Band 12/ 17
  • -Uplink:698MHz-716MHz
  • -Downlink:728MHz-746MHz
  • 2. AGC LEVEL:Uplink:-45.00 Downlink:-56.00
  • 3. Max.Antenna Gain:Uplink:8.1dBi Downlink:6.6dBi
  • 4. Operating voltage: AC100 ~ 240V, DC12V/2A
Read more cell phone booster for home att

AT&T Cell Phone Signal Booster Kit

  • 65dB High Gain signal booster aims to help you reduce dropped/ missed calls, improve battery life, offer higher audio quality and faster data and streaming. Support multiple users simultaneously in home and office.

4g cell phone booster kit

Indoor Cell Phone Signal Amplifier

  • The cell phone signal repeater shall be installed in indoor areas only; mounting it in a indoor place where is near from the power socket and have good ventilation.

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Indoor Panel Antenna

  • The panel antenna will rebroadcast the boosted cellular signal to multiple mobile devices. Need connect the 16ft Coaxial Cable to it and the Indoor port of signal amplifier.

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Outdoor Yagi Antenna

  • The Yagi antenna could pick up cell signal from signal tower and send to the signal booster. Please keep this outdoor antenna towards the cell phone signal tower when mounting.

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ATT Booster

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Cellular Booster

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Panel Antenna

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Yagi Antenna

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Installation of Outdoor Antenna

  • Mount the outdoor panel antenna at outside place where receives the strongest signal from cell tower, and point it in the direction of tower.
  • APPs: LTE Discovery and Network Cell Info Lite can help you find out the best signal location.

Installation of Indoor Antenna

  • Mount the Booster device somewhere inside the house and find a place to put the indoor panel antenna.
  • The phone booster should be mounted in a place where have good ventilation.

Installation of Coaxial Cables

  • Connect the coaxial cables to the indoor/ outdoor antenna and the indoor/ outdoor ports of signal booster.
  • The distance between indoor and outdoor antennas should be over 22ft and make sure a proper physical separation between them.

Installation of Power Adapter

  • Connect the power adapter to the booster and power socket, then its LED will on and start working.
  • Note: the booster kit could only make the weak signal becomes stronger, it couldn't create signal.

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Legal Disclaimer

This is a CONSUMER device. Before use, you must register this device with your wireless provider and have your provider’s consent. Most wireless providers consent to the use of signal boosters. AT&T, Sprint, T-Mobile, Verizon and 90 additional carriers have already given consent for all consumers to use this device. Some providers may not consent to the use of this device on their network. If you are unsure, contact your provider. You MUST operate this device with approved antennas and cables as specified by the manufacturer. Antennas MUST be installed at least 20 cm (8 inches) from any person. You MUST cease operating this device immediately if requested by the FCC or a licensed wireless service provider. WARNING. E911 location information may not be provided or may be inaccurate for calls served by using this device. Please note, the four largest carriers, namely, AT&T, T-Mobile, Verizon and Sprint, and more than 90 regional carriers have given a blanket consent to all boosters meeting the new certification standards. See more
Product information Color:White Package Dimensions 14.5 x 7 x 5.5 inches Item Weight 4.84 pounds ASIN B082V1YT87

To my surprise, this booster worked really well. Went from 1 bar in my house to 4 bars; Calls are crystal clear; and signal can cover my entire house.

Cover the entire house and all of family members can get signal wherever he stays in he house.Didn't need to spent hundreds to get service in a fairly remote location.

I had issues to make it work when not reading instructions at first. Then I tried to check the manual carefullu and did what it said. Surpringly, my signal Went from -115db going to -85db, no dropped calls at all. Install it correctly as instructions and it will be the best investment you make!

Works great! My cell reception was spotty at best in the house to the point I was going to switch carriers and be forced to pay more for a comparable plan. Now I don’t have to! I have 3 to 4 bars everywhere in the house, no more having to hold the phone in one specific spot to prevent loss of signal. We have 4 devices and it works for all of them, improved reliability for the home phone/hotspot too! No overheating of the amplifier as other reviews have stated. It’s nice and cool. Worth every penny!

We just had a metal roof installed. Our phone reception was terrible before, but now with this booster we have much better reception.

Working as it was advertised

It boosted my phone to full bars and my husbands, downstairs to almost full. very happy.

High quality product, works better than your expectation. It is a great product and I highly recommend anyone to give it a try. You won’t be disappointed.