My remote controller was in my pocket so it went through the washer and then the dryer. Works fine! I actually think it may be water-tight.

I used 14 min regular wash--next time I'll try the gentle cycle.

 

Part of the remote is sealed. But not to mention the PCB on there is all pretty much solid. Aint much water can do to it because its just DC volt. So not much you can do to it besides drop it into a glass of soda and it stops working accurately because of the syrup that causes an issue with the contact pads.

Dixit