... melody and duration can be customized,special music card.Can put any voice,music or message what ... release to stop record.* with one button for user recording by themself* Fix with music(can ... be cusumized), when you open the foldable card ,it playback recording voice first, then play ... .* with foldable card or not, it's depand on you. Greeting Card module, voice modules, ic for card, voice postcard