Use our TRIGGER 4 PLUS Remote Replacement to expand the connectivity of your TRIGGER 4 PLUS Wireless Accessory Control System! Well, maybe not expand per se, but rather 'replace' ... as the title says. Or expand ... expand works too. Buy another RF Remote to replace the one that flew out the window, or just to have an extra on-hand ready when you need it! Includes one RF Remote and one Remote Base. Not Sold Separately.