Water Resistant Portable Speakers
Although intended for use in the shower, I’m sure you’ll have fun with it while sailing as well…
“These portable speakers by JVC are safe to take with you in the shower. So load it up with your favorite karaoke tunes (on MiniDisk) and sing away as you soap. It comes in three pastel colors and will be available in Japan on June 1st. Also comes with a pocket-sized remote controller.”