2,40mm diameter speaker
3,3xAg10 button batteries
4,With custom sound (If you send sound file to us with mp3 or wave file format so that we can record sound into the chip of sound ic).
6,slider switch or press switch
7,with double-face adhesive paper (When you tear paper and you can direct attach sound ic to greeting card.when you open card sound will play and close card sound stops).
9,Good sound quality
10,Your OEM or ODM will be welcomed by us.
11.Sound ic is very suitable for your greeting card,postcard,newspaper,magazine,advertisment or others.