BoxWave DJI Phantom 3 Smart Gadget, [GPS Shield] GPS Signal Enhancer for DJI Phantom 3, 2, 1 Improves the GPS signal of your Phantom 3 Precisely placed relief cuts give full coverage with no gaps, blocking interference and allowing you to receive faster, better positioning with satellites Triple adhesive - layer hybrid foil, adhesive and non-conducive clear layers work in harmony to create a safer and better working copter Easy- to-install! Takes less than 15 minutes!