BTG Antenna Signal Range Booster for DJI Phantom 3 Pro Advanced Standard, Phantom 4 Pro Pro+ Advanced Advanced+, DJI Inspire 1 Controller Signal Extender Special Design for DJI Phantom 3 Pro Advanced Standard, Phantom 4 Pro Pro+ Advanced Advanced+, DJI Inspire 1 controller To improves both remote control and Wi-Fi video connection performance for DJI Phantom 3, phantom 4, Inspire 1. (increase the range by 50% or more) Thicker foil higher reflectance; Light weight (80g/2pcs); flexible design and convenient to use 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: 2pcs Signal Extenders (controller is not included, just for reference).