You need to confirm a few things before you buy the signal booster!

The correctness of frequency is the most important thing for amplifiers.

Because different operators works on different frequency bands.Therefore,you need to confirm the things below:

  1. What is your mobile-phone operators? (You can check it follow in steps of the picture).
  2. Whether your outside signal strength can stabilize to be 2 bars or not? 

      Please ensure that you can make calls outside your house, at roof or wherever you plan to install the Outdoor Antenna. If there is no signal outside your house, the booster will not work for you. Because the amplifiers only can help to boost the exist signal but can't to produce it.

      After you purchased it,please insure our emails will not be rejected by your mailbox,or we can't find you.