DJI's Phantom 4 comes with obstacle avoidance and 'speed' mode | Engadget
DJI Phantom 4 Pro V2.0 Edition Launched With Improved Features - Gizmochina
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 :
DJI's Phantom 4 comes with obstacle avoidance and 'speed' mode | Engadget