zBoost YX-500 PCSCell Phone Signal Booster up to 2500 Square Feet of Coverage for Home or Office (1900 MHz Phones) Extends cellular coverage for single or multiple users in homes or offices--provides up to 2500 square feet of coverage Works with T-Mobile, Metro PCS, Cricket, Suncom, and Sprint (not Nextel) PCS wireless phones in frequency range of 1850-1990 MHz Omni-directional signal antenna receives signals from multiple cell towers Antenna can be installed outdoors above the roofline or indoors in the attic or near a window Extends phone battery life--uses less power when signal is stronger