zBoost Cell Phone Signal Booster - 824 MHz, 869 MHz, 1850 MHz, 1930 MHz to 849 MHz, 894 MHz, 1910 MHz, 1990 MHz - CDMA, GSM, GPRS, EVDO, UMTS, HSPA - 3G - Omni-directional Antenna

The zBoost ZB645SL-CM boosts cell phone signals for voice calls and text for all major carriers in North America. zBoost ZB645SL-CM captures the reliable cellular signal you have outdoors and rebroadcasts it indoors, so you can enjoy clearer, faster and more reliable cellular service. Features multi-user capability and covers up to 7,500 sq ft for enhanced signal coverage.