WIRELESS EXTENDERS YX055 OUTDOOR CELLULAR PHONE YAGI ANTENNA DIRECTIONAL UPGRADE TO THE WEXYX500CEL OUTDOOR ANTENNA; PROVIDES ADDITIONAL COVERAGE BY BOOSTING THE OUTSIDE SIGNAL STRENGTH IN THE DIRECTION IT IS POINTED; PROVIDES 15 DBI OF GAIN TO STRENGTHEN THE SIGNAL ; FOR OPTIMUM PLACEMENT & SIGNAL ENHANCEMENT, USE THE YX699 DURING SET UP