sound greeting card for advertising

Music greeting card , musical greeting card,sound greeting card, voice greeting card ,voice card, sound card is very personal cards. you can express your unique .when client open this cards, will hear your feeling . If you are interested in it .pls send your sound file in wav or mp3 format to us ,and card design in PDF or AI format to us ,then, we can come out what you need . Normal greeting card closed size:18*12cm 250gsm paper, 4 colour printing Available duration time:5 second to 480 second With speaker, battery and other electronic parts For these card, we can make slide switch or push button Packing:1pc/opp,240 pcs /ctn Welcome to contact with us and give our best choice to you!