Waterproof Quadcopter Drone Fully Submersible – Tetra Drones V4 Underwater Testing – Swim and Fly01:28

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Testing the latest Tetra Drones prototype

Tetra is a fully submersible UAV that can function above and below the water – ‘Swim & Fly’

Follow @TetraDrones of Facebook for the latest updates and development progression.

Visit our website: www.tetradrones.co.uk

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