These fairly inexpensive helicopters can be remotely controlled with your phone and, with a HD camera, maybe they could be used to preview a new climbing route. These small ones are limited to distance and by wind, but how neat is this?
These fairly inexpensive helicopters can be remotely controlled with your phone and, with a HD camera, maybe they could be used to preview a new climbing route. These small ones are limited to distance and by wind, but how neat is this?
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