The christmas cards with led lights and sound made by our factory is quite attractive and popular for the US and Europe markets. We made many improvements based on the traditional cards, we make the cards with led lights thin and small, all the electronics parts covered inside the card. You cannot see the difference from the outside of the card, but it will surprise the one who open the cards when it lights up and plays the music, even plays the receorded voice messages from a friend. It can be used for festival and holiday gifts, birthday and wedding invations and ceremony invations ect. We can custom the lighting and electronic parts based on your ideas and also your artworks.