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RE: VideoRay Pro 4 - Underwater remotely operated vehicle (ROV)
Spectacular Hunt @jyoti-thelight
Pros
It can be used to record data deep inside the river or ocean which might be difficulty for diver to do manually.
VideoRay Pro 4 is long-lasting without needing any repairs.
Can provide high resolution photos and vidoes inside ocean and river life.
Cons
The work done by VideoRAy Pro 4 is actually slow in compared to work done by divers.