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This design allows you to start a walk in an unfamiliar city; your journey is no longer lonely!
When you arrive at any of the city's tourist centers, you can rent a UAV city guide. After your smartphone downloads an app and connects to the drone via Bluetooth, it will be your guide, smart navigation, Lonely Planet, and selfie camera.
It is worn on the upper arm of the user and can store power for the drone base through the natural swing of the upper arm. The base is also equipped with graphene organic photovoltaic cells to store electrical energy. It also built-in RFID chip, the user can call for help to deal with unexpected situations.