... . Speaker Size: Dia 16,23,27,29,36,40,50mm is avaiable for choice5. PCB Size: 70mm*30mm; 40mm*25mm customized ... button, light,motion, vibration activated the sound9. Battery: 2-4pcs cell battery for different item10. Application: Greeting card, gift/package bags, gift box ... more experience3. Skillful workers ensure quality and speed4. Customer satisfaction is our top priority5. Rapid response ...