zBoost YX300-PCS-CEL zPersonal Dual Band Cell Phone Signal Booster Dual-Band Personal Cellular Phone Signal Booster Increases Signal for Single User Workspace Wireless System with 6-Ft Radius Signal Helps Eliminate Or Reduce Dropped Calls Increases your indoor cell signal coverage for your workspace--up to 6 feet Dual-band device works with 800/1900 MHz frequencies from all major carriers--AT&T, Sprint, T-Mobile, Verizon, Alltel, Cricket, and more (not compatible with Nextel) Ideal for for single users in dorms, hotels, homes or offices Great or travel--small footprint and lightweight Extends phone battery life--uses less power when signal is stronger