Are signal boosters legal?
All signal boosters sold on HiBoost Official Store are certified by the FCC, meaning they are pre-approved and perfectly legal. There are a lot of non-legal, junk signal boosters out on the market that can disrupt the cellular network. Many of which you might find on Amazon or eBay.
3G vs. 4G vs. 5G signal booster: which one should I get?
When deciding what in-house cell phone signal booster to get, know that there are 3G, 4G, and 5G options available. 4G and 5G boosters are referred to as five-band and 3G boosters are referred to as dual-band.