1. 3-900S loading time can meet all your requests 
2. support pre-loaded sound
3. Accept customization with sound.
4. It consists of PCB board , Speaker, IC, Battery, paper card
6. It can made for different size to meet your needs or requirements.
7. Apart of them can be replaced the battery or support power charging function
8. It is used in Shop , Out of door, Restaurant, Funny Party or Play tricks on people.
9. Many methods to active the sound or recordable messages, such as Press the button, Slip, Light sense, Shadow sense, Body sense, Vibration etc.