Through the following contents, you can learn more about music led greeting card:  
1. Message: Voice, music and sound are abailable.
2. Pre-recorded duration time: 3 to 340s are available.
3. Components: Voice IC, PCB board, paper card, speaker and batteries.
4. Slip switch or push button activates the sound. Other methods of activation can also be achieced such as light, motion or viaration.
5. LED will be flashing with the sound.
6. Clear and vivid voice quality.
7. All memories will not lose even if when power if off.
8. Any customized design and sound are welcome.
9. Packing: One piece in an OPP bag.