Color:Connect 4G-B13 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 ManualFrequency range: 700MHz (Uplink 777-787MHz, Downlink 746-756MHz), 1900MHz (Uplink 1850-1910MHz, Downlink 1930-1990MHz)Operating voltage: AC100 ~ 240V, DC5V/2AOutdoor antenna: Lightning protection, waterproof, drain outlet down, adjustable direction, not including the mounting poleIndoor antenna: Length 9.8ft, can be adsorbed on any metal, don't get too close to the boosterNote: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!