B01MRBM1W6 Smoothtalker Stealth X6 72dB 4G LTE Extreme Power Cell Phone Signal Booster for Home and Office

Ideal for remote locations greater than 6 miles (10 km) and up to 30 miles (50 km) from the nearest cellular tower
Covers up to 18000 sq. ft.(Sq ft will vary with outside signal strength)
Improves voice calls and increases data speed for all cellular devices
Supports all networks except Sprint bands 26 (800MHz) and band 41 (2500 MHz)
Made in North America – 2 Year Warranty – please scroll down for more product info.