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. Folding design, before use please remove the film. Because some csutomers make some feedbacks the old style surface always dirty, this film design can solve that problerm.