... 2. Function: message recording(optional) 3. Voice recording duration: 3 to 270s for recording funciton 4. component: PCB, voice chip, a speaker, ... and ODM orders ar welcome 7. Suitable for greeting card 8. One piece/OPP bagVoice recorder1.mp3,mp4 module,2. ... module ,Greeting card sound module3.inviation card module 4.animal sound module, 5.blink module,6. recordable pen module,voice recorder 7. ...