DJI Spark Range Extender
thingiverse
This device has to be put on your Spark's remote control and then will extend it's range. In order to work you have to stick some copper tape (or aluminium foil) inside the shells.
Download Model from thingiverse
With this file you will be able to print DJI Spark Range Extender with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on DJI Spark Range Extender.