Ultimaxx Copper Parabolic Antenna Range Booster for DJI Mavic Pro and DJI Spark Controller Transmitter Signal Achieve more stable flight and fewer accidents with this Ultimaxx Copper Parabolic Antenna Range Booster for DJI Mavic Pro and DJI Spark Controls! The concave copper layer concentrates your remote signal, increasing signal range and reliability. This delivers a stronger connection for both control and video transmission to your remote, supporting uninterrupted and smooth transmissions. The convenient folding design allows for easy storage in most equipment kits or bags. FeaturesSTRONG CONTROL: The copper boosts your remote signal, providing better control of your drone and lessens the chance of accident due to loss of connection.CONVENIENT: Folding design allows for quick storage almost anywhere!COMPATIBILITY: The copper booster works with DJI Mavic and DJI Spark drones.SUPER LIGHTWEIGHT: The booster doesn't weigh down your remote or your accessory bag.