Classic case of Sunday joy and Monday sadness!!! When I received it, I saw that it has zero waterproofing, so I decided to put silicone on the points where water could get to the circuit board and the batteries before giving it to the child. Result? It ended up leaking water from the little propellers in the back. It worked for just 2 minutes and then no movement. I opened it and found the circuit board inside with water and short-circuited. Just stay away!!! You will cry over the 20 bucks and the child will go from joy to sadness!