Both of mine went through the clothes washer, noticed one as I was taking my clothes out. The other one I couldn’t find, so I put clothes in the dryer and lo and behold the other one ended up in the lint trap. I was quit sure they were destroyed. I removed the batteries and allowed them to dry out for a couple of days and then thought what heck I’ll give them a try,THEY WORKED! That was about a month ago and they are over a year old. Still working fine, tho I wouldn’t recommend doing that intentionally. Thanks for the great product,has made my life so much better.