Sell ♟▦[FLYING] DJI Spark /Mavic Mini/Mavic 2(without smart remote)/Mavic air/Mavic Pro Controller Signal best price

It is Aluminum material Fit for DJI Mavic Pro/DJI Spark Include: 1 xRemote signal expansion board ; Note:In addition to the above these things, and no other things. Features: Remote signal expansion board, aluminum material, which is an idealized radar antenna and produces a pencil beam. If the reflector has an oval shape, it generates a fan beam. To avoid signal problems due to the loss or fried machine situation. Signal enhancement, flight more security. The film of the surface is torn off prior to installation, with the metal sheet facing outward