This deck was modified from the TextFugu Katakana deck. It only includes the 46 basic Katakana characters but it has sound files attached. It also allows for you to type the Hiragana character underneath for added practice.
Sample (from 46 notes)
Cards are customizable!
When this deck is imported into the desktop program, cards will appear as
the deck author has made them. If you'd like to customize what appears on
the front and back of a card, you can do so by clicking the Edit button, and
then clicking the Cards button.