I wish to inform all the guys who own a 3D printer that it is now available on my Thingiverse page the 3D model of the "Range Booster" for your DJI Phantom 3/4 drone: DJI Phantom 4 / 3 / Inspire 1 Range Booster by giufini For those who don’t own or have access to a 3D printer, the Range Booster is now available as a ready to use accessory for your DJI drone. It is made using a professional-grade 3D printer and impact resistant materials. Moreover, it comes provided with an already applied HQ seamless copper foil to guarantee the best performances. You can usually get excellent results with the booster covered with aluminium foil, anyway my boosters with copper coating will allow you to reach more distant targets, moreover it can give better results expecially when you pilot your drone in areas with sparse trees and medium size obstacles. In any case, you will be greatly impressed by the improvements that this Range Booster will give to your flights with DJI Phantom or Inspire drones. See my Thingiverse page for info about costs and availability. Happy flights with your Phantom!