Boost indoor signal coverage up to 1500 square feet * Compatible with all U.S. carriers and mobile devices using 800 & 1900 MHz and optimized for iPhone (except Nextel/iDEN or 4G, 2100MHz phones) * Increases voice and data transmission; decreases dropped or missed calls * No outside antenna placement required * Requires no cradle or connections to your phone * Compatible with all U.S. carriers and mobile devices using 800 & 1900 MHz including iPhone, Android and BlackBerry (except Nextel/iDEN or 4G, 2100MHz phones) * Decreases dropped or missed calls * Easy to set up ? comes complete with everything you need * Extends phone battery life (uses less power when signal is stronger) * Increases indoor signal coverage ? up to 1500 sq ft * Increases voice and data transmission * No cradle or connections to your phone * Protects the carrier network using patented technology * Supports multiple users simultaneously