ADJUSTABLE, RETRACTABLE VHF DIPOLES ;EXTEND UP TO 39" TO IMPROVE RECEPTION OF CHANNELS 2–13 ; HDTV-COMPATIBLE ; UHF LOOP FOR IMPROVED;RECEPTION OF CHANNELS 14–69; UHF LOOP FOLDS DOWN INTO UNIT ; IMPROVED CIRCUIT DESIGN TO REDUCE;AMPLIFIER NOISE ; ATTACHED 6-FT, 75_ COAXIAL HOOK-UP CABLE;WITH F-CONNECTOR FOR EASY HOOK-UP ; 10 DB ADJUSTABLE GAIN TO BOOST HARD-TO-GET;SIGNALS ; OFF-AIR RECEPTION OF LOCAL CHANNELS; INCLUDES AC ADAPTER