The HiBoost 15K Smart Link Deluxe was fundamentally designed to help maximize your 3G, 4G LTE and 5G signal by providing the most powerful consumer solution. It’s ideal for customers with a weak outdoor signal. The maximum gain is 70 dB and will be able to cover up to 15,000 square feet with two inside antennas.

https://www.hiboost.com/product/15k-smart-link/