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"YOTOY Smart Obstacle-Avoiding Aerial Drone with Dual HD Cameras, Quadcopter UAV for Aerial Photography with Foldable Design - Black / [4k Single Camera] Triple Batteries"
<https://www.yotoy.com/products/smart-obstacle-avoiding-aerial-drone-with-dual-hd-cameras-quadcopter-uav-for-aerial-photography-with-foldable-design>