Increase your cell phone"s signal with the Wilson Dual Band Mobile Wireless Cell Phone Signal Booster. Designed for use in your car, truck, RV, or boat, this booster significantly improves your cell phone"s performance and signal strength. It supports multiple cell phones and data cards simultaneously, and works with almost all North American cell phone carriers, which include both cellular and PCS carrier frequency bands. You"ll experience fewer dropped calls, faster data rates, and clearer reception.