The 4K drone JJRC H106 is quite possibly the cheapest on the market, it is also in stock in the EU
JJRC H106 Drones With Dual Camera Hd 4k FPV RC Quadcopter Auto Return 360-degree Rollback Professional Drone Foldable Quadcopte
RC Drone 4K Professional JJRC H106 Trilateral Obstacle Avoidance RC Quadcopter with Camera Optical Flow Fixed Aircraft Obstacle Avoidance Drone 4K Camera with Battery with 3 Battery (Black) - Walmart.com
JJRC H106 RC Drone w/ 4 sides Avoid Obstacle WiFi FPV 4K Dual HD Cameras Altitude Hold Return RC Quadcopter Helicopter Gift Toy - AliExpress
Promo Drone Mini Dua Kamera Jjrc H105 H106 4K Obstacle Gyro Optical Flow Diskon 6% di Seller Ramonaa Shop - Wanasari, Kab. Bekasi | Blibli
RC Drone 4K Professional JJRC H106 Trilateral Obstacle Avoidance RC Quadcopter with Camera Optical Flow Fixed Aircraft Obstacle Avoidance Drone 4K Camera with Battery with 3 Battery (Black) - Walmart.com
JJRC H106 RC Quadcopter Drone with 4K Professional Dual Camera 6CH Foldable Drone Obstacle Avoidance Helicopter Toy Kids RC Toys - AliExpress