zBoost  YX110-PCS-CEL zPocket Dual Band Cell Phone Signal Booster Dual-Band Cellular Phone Signal Booster Increases Signal For A Single-User Workspace Wired-Phone Rests In Pocket Helps To Reduce Dropped Calls Creates a &#8220;Personal Cell Zone&#8221; for a single user - covers your workspace. Great for Travel - Compact size, zero installation - take your Cell Zone with you Works with all phones* and U.S. carriers, increasing signal strength for voice and data transmission. *except iDEN, Nextel Easy to usejust plug in and start talking Dual-band works with all phones and US carriers except Nextel