Product features: the Sure Call flare 3.0 Cell Phone signal amplifier boosts weak signal up to 3, 000 sq. ft. in an omnidirectional pattern. This results in fewer dropped calls, improved battery life, higher audio quality, and faster data and streaming. Sure Call cell phone signal boosters are compatible with all North American carriers including: AT&T, T-Mobile, Verizon, Sprint, Straight Talk, U.S. Cellular and many more.
Best for: the Sure Call flare 3.0 Cell Phone booster is good for multiple room coverage for those who don’t want a complex install. It provides more coverage than the original flare thanks to its longer range directional outdoor antenna. Indoor coverage area will vary based on available outdoor signal strength: 1-2 bars ~1500 sq. Ft, 3-4 bars ~2000 sq. Ft, 5 bars ~3000 sq. Ft.
Directional vs Omni antenna: The Sure Call flare 3.0 cellular booster kit comes with a Yagi directional antenna and combines the indoor antenna and signal amplifier for a simple setup. The high gain Yagi antenna provides up to +9 dB Uplink power over an Omni antenna and can reach far Away cell towers with ease.

SAY HELLO TO GRIDDY! – Ultra-wideband yet super high gain. Griddy has 12-17 dBi of gain on the 600-960 MHz frequency bands; 20-23 dBi of gain on the 1700-2700 MHz frequency bands; and 23-26 dBi of gain on 3000-6500 MHz frequency bands.
GRIDDY NEEDS LINE OF SIGHT – Since Griddy has such high gain, it’s important to have line of sight to the cell tower or WiFi access point you’re connecting to. Any dispersion or reflection through trees or buildings will make Griddy much less effective.
LIGHTNING FAST DATA RATES: Struggling to get a consistent signal with a cell booster? Getting low data rates from your LTE modem? As long as you have line of sight to the tower, Griddy will help you get blazing fast data. Simply install the antenna in place of your current antenna, aim it at the tower, and enjoy the fastest possible data rates.