Same as PPs, I took mine to Hawaii......Phila to Salt lake, Salt Lake to Maui, Maui to Oahu, Oahu to Big Isalnd, Big Island to Kauai, back to Oahu to Salt Lake and home to Philly again!!!! It was in the checked luggage the whole time and no problems. It was great to have on the trip.
I don't remember seeing them at any WDW resort, have stayed at WL, POFQ and All Stars.......If you find out that any resorts have sound machines, please let us know!Tia!!!!!