YKS 2.4G Aluminum Parabolic Antenna Range Booster for DJI Phantom Phantom 4/Phantom 3 Pro/Advanced Inspire 1 Controller Transmitter Signal Extend (White) The booster improves both remote control and Wi-Fi video connection performance for DJI Phantom 3 Inspire 1. Made into parabolic shape. Parabolic antenna is the most frequently used type of radar antenna installation works.Parabolic antenna consists of a circular parabolic reflector mirror located in the focal points of light. Thick aluminum foil higher reflectance.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. In an open testing area, it boosts additional 10%-20% range. Made of high quality and durable plastic. Light weight, practical and convenient to use. Note: Our Parabolic Antenna Range Booster is directional, in order to have the best performance, you need to point the antenna to the drone while flying.