If your using a data card for internet then this is for you a 13dbi, 800MHz Yagi Antenna. Improves internet speed.
These Yagi antennas are typically frequency specific (800MHz or 1900MHz). You must match the antenna frequency with the frequency that your service provider is using in your area. Although most carriers (and phones) can use multiple frequencies, a service provider usually uses only one of these frequenies in one particular area. 800MHz higher gain antennas improve transmit and receive signals for used by Verizon, Alltel, US Cellular, Cellular One, Cingular, Nextel, SouthernLINC, Bell Canada, Telus, Mike and all other Cellular and iDEN carriers.