A cell phone signal booster is an FCC and IC certified electronic equipment that improves existing cellular signals: 2G, 3G, and 4G LTE.
They work with all cellular devices (smartphones, tablets, hotspots, notebooks, etc.) on all major US & Canadian carriers (AT&T, Verizon, T-Mobile, Sprint, Bell, Rogers, Telus etc.).
If you generally have weak to good signal outside your home or building, but poor signal inside, then a cell phone signal booster can definitely improve your coverage and signal strength.Learn More: The Definitive Guide to Cell Phone Boosters