ell quit staring at your one-bar-worth of signal strength and pick up this handy Cellphone Signal Extender for your home or office. Simply mount the included antenna near a window and run the coax cable to the base booster unit. You get 2500 square feet of prime signal area (enough to cover 2-3 rooms on two different floors). We went from 1 bar... to 5 at the ThinkGeek secret headquarters and made our iPhones very happy in the process.