I just now looked through the literature for AB that my audiologist gave me and it does say in the literature that it is "designed to withstand rain, sweat, moisture, and more". And there is a photo of the AB CI with water on it. So...I guess they've gone through the process and is starting to advertise it. Literature also says that it is MRI safe, as well. My audiologist said that even though Freedom and AB are MRI safe, you still have to have the magnetic piece taken out before MRI and then they will put in a new magnetic piece after MRI is done.