Special Design for your DJI Phantom 3 Professional Advanced, Phantom 4, and Inspire 1 controller High quality aluminum plate, higher relectance, to improves both remote control and Wi-Fi video connection performance (range increased up to 95%); With 2 symmetrical mounting holes, easier to install and in good balance; Light-weight, foldable, convenient to carry and storage. Parabolic reflector is made of metal, usually a metal frame covered with wire mesh on the inside. The metal coating is formed to act as a mirror reflector radar energy. Package including: 2 pieces Folding Signal Extenders (controller is not included, just for reference).