The Drive X Fleet is a powerful cellular signal booster, specifically designed for fleet vehicles like: police cars, government or commercial vehicles, delivery trucks or whatever your fleet might look like. It boosts all carriers simultaneously giving your staff the signal strength they need to communicate and stay connected with others on your team regardless of the carrier they use. This kit uses a high performance NMO antenna, which REQUIRES PROFESSIONAL INSTALLATION. The Drive X Fleet boosts voice and data with max FCC-allowed 50 dB system gain, enhancing all available network speeds and cellular bands for improved coverage patible with all U. S. wireless carriers including Verizon, AT&T, Sprint, T-Mobile, US Cellular, Straight Talk and more. Like all weBoost products, the Drive X Fleet comes with a 2-year and 30-day money back .