Superb small submarine

I am very happy with my purchase! It works great and autonomy is really good (at least 25mn). Above all, it has a real piston ballast system, which allows him static dives. If properly adjusted, it can stay at the same depth, between two spirits. His speed is not exceptional but it is small it is not annoying. It can turn on itself and is very handy because they are thrusters that guide. It looks solid and well built, and it looks awesome. Nice as a gift for big kids (or small adults like me ...)

Small problem I might add to my comment: the product broke down after 48 hours. I do not perhaps have been very lucky and came across a wrong number, but for a product at this price it is not normal. Amazon, as always, was perfect: return product and fast refund. It's a shame because I enjoyed myself with this small submarine, but I prefer not to retry the experiment ...