Drone Fans 1 pc Remote Controller Enhanced Board Range Extender Parabolic Antenna Signal Booster for DJI Phantom 3 Standard and Phantom 2 Designed for your DJI Phantom 3 Standard and Phantom 2. Light weight, durable, practical and convenient to use. Made by copper and aluminum, effectively prevent oxidation. Parabolic reflector. No bump or deformation on the reflecting panel!!! Accurate parabolic curved antenna completely reflects the remote signal to the antenna (the focal point of the reflector)