Bestmaple Remote Controller FPV to Enhance the Board Extended Range Parabolic Antenna Signal Booster For DJI Phantom 4 Phantom 3 Pro/Advanced Inspire 1 Foil process It improves both remote control and WiFi video connection performance for DJI Phantom 4 Phantom 3 Pro/Advanced Inspire 1 Full range coverage,strong and stable signal,Compact design and good firmness. Lightweight,durable,practical and convenient to use. Thick electroplating process foil higher reflectance. Material: electroplating process, copper plating; effect is more better than Foil process