1. Message: Voice, music, melody, sound are available
2. Function Option: Pre-recorded or recordable with LED or not
3. Recording duration time: 1-340s, even more if needed
4. Speaker Size: Diameter 27mm-44mm is available for choice
5. PCB Size: 70mm*30mm; 40mm*25mm customized is available
6. Components: Voice IC, PCB board, speaker, record, play and battery
7. Sound format: MP3, WAV Factory provide programmable sound button for greeting card
8. Switch Option: Pull-tab switch, push button, light motion, vibration activated the sound
9. Battery: 2pcs AAA batteries Factory provide programmable sound button for greeting card
10. Application: Greeting card, gift/package bags, gift box, electronic sound toy, sound gift etc
11. Certificate: CE ROHS EMC Factory provide programmable sound button for greeting card
12. OEM and ODM are welcome