KKBSTR Cell Phone Signal Booster, Verizon Sprint 2G 3G 4G LTE, ATT T-Mobile 2G 3G, Home B2 B13 Cellular Signal Repeater Amplifier Kit


How a cell phone signal booster works: A cell phone signal booster uses an outdoor antenna to search for cell phone signals in the area. It captures those signals and boosts their power with a signal booster. An indoor antenna broadcasts the strengthened signal so that your phone can receive it.

Package included: 1 x Host, 1 x Power Adapter(US Plug), 1 x Indoor Antenna, 1 x Outdoor Antenna, 1 x 49.2ft Coaxial Cable, 1 x User Manual

Frequency range: 700MHz (Uplink 777-787MHz, Downlink 746-756MHz), 1900MHz (Uplink 1850-1910MHz, Downlink 1930-1990MHz)

Operating voltage: AC100 ~ 240V, DC5V/2A

Outdoor antenna: Lightning protection, waterproof, drain outlet down, adjustable direction, not including the mounting pole

Indoor antenna: Length 9.8ft, can be adsorbed on any metal, don’t get too close to the booster


1. The indoor and outdoor antenna is best to keep the distance of more than 8m(26ft), preferably separated by walls. The outdoor antenna is preferably installed horizontally in a better signal area and toward a cell tower.

2. There must be 2-3 bars signals outside, otherwise the signal can not be amplified, because this is a cell phone signal repeater. A booster can only enhance the signal, can’t create a signal.

3. In order to boost your 4G LTE signal, please confirm that the 4G LTE band of your cell phone card in your area is 2 or 13. If you don’t know your band, you can query through these simple operations(iPhone: Dial *3001#12345#* -> Serving Cell Info -> LTE -> Freq Band Indicator, Android Phone: Download and install the app ‘LTE discovery’ -> SIGNALS -> EARFCN).

If you have any question, please feel free to contact us by buyer-seller messages or email, we will try our best to help you. Thanks!

Advantages: Dual-band(B2/B13), smart chip, high-tech custom circuit, faster data uploads and downloads, better voice quality, It can improve both voice and data signals, supports 2G/3G/4G LTE signal for Verizon, Sprint phones, 2G/3G for AT&T, T-Mobile phones, the effect of dual band(700/1900M) is better than single band(700M). Note: Please follow the instructions on the details page to check if your cell phone is supported.
Coverage: Maximum coverage range 3500 sq.ft / coverage radius about 32.8 ft. The indoor coverage area will depend on the outdoor signal strength.
Installation: Easy to install, all components required for installation are included in the package. Point the outdoor antenna towards a cell tower. Connect the coax cable from the outdoor antenna to the booster inside. Connect the indoor antenna. Then power supply. Done.
Applications: Can be used for home, hotel, office, basement of buildings, coffee shop and shopping mall etc.
Product Warranty: 30 days money-back guarantee, if not work, full refund for you. One year manufacturer’s warranty, as long as during the service period we can replace a new one for you at any time.



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