B08DNQ9KPH Lintratek 4G LTE Band 12/Band 17 Cell Phone Signal Booster Amplifier AT&T T-Mobile U.S. Cellular Straight Talk Phone Signal Repeater Antenna for Home/Office/Basement AGC Function

??RRESPONDING POINTS??Lintratek two bands into one band booster improves Band 12 and Band 17 signal, its signal frequency is 699~716MHz (Uplink)/729~746MHz (Downlink). It can work for vast majority of USA cell phone carriers: AT&T, T-Mobile, U.S. Cellular, Cricket Wireless, Straight Talk, etc.
??RKING PRINCIPLE??The working priciple of the Band 12/17 booster is that as long as cell phone signal band is band 12 or band 17 signal, this type of booster can improve cell phone signal. So avoid buying the wrong type of booster, before buying please test cell phone signal bands (the test method is in the picture).
??SY TO INSTALL??All installation accessories are included, all parts are plug and play, no technical skills required to install it. Make sure that Booster works after installed, most importantly the outdoor antenna points to the signal tower and separates to the booster as far as possible when install it.
??RGE COVERAGE??The gain of the booster up to 70dB and the improved signal coverage of the up to 3,500 sq. ft. without obstacle (solid walls). The better the conditions, the more obvious the Booster’s effect is. Let everyone get rid of bad signals and enjoy the pleasure of strong signals again within the coverage.
??VIOUS EFFECT AFTER USE??Booster cannot creat signal, it just improve signal from one bar to four bars or full bars. After using booster, house or office will be filled with band 12/17 signal (if the screen is blinking and your cell phone signal cannot be improve, it may the installation has problem, please do not worry and contact us, we can help you solve this problem.)