DJI has released the new firmware v3.12 for Phantom 2 series quadcopter
Phantom (UAV) - Wikipedia
DJI Phantom 3 Standard review: An entry-level drone that's much better than basic - CNET
Amazon.com: Release and Drop Professional Device for DJI Phantom 4 (all models) – Drone Fishing, Bait Release, Load Delivery, Search and Rescue and Fun – U.S. Patent - by DRONE SKY HOOK :
Timeline of DJI Drones: From the Phantom 1 to the Mavic Air
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Phantom 3 Standard - DJI
Phantom 3 Professional - DJI
Drone Fishing | Gannet Sport bait release For DJI Phantom Drones – Drone Fishing - Gannet
DJI Phantom 3 Advanced review: The sweet spot for features, performance and price - CNET