1. Function: press each button on the bar, it will play different sound. Different button control different sound

For children's educational books, enrich children's knowledge and enhance their interesting of study

For language studying

For music teaching and learning, entertainments

For the blind people learning

2. Material: ABS plastic

3. Size: existed or customized

4. Souns message: animal, traffic tools, funny sound, real-man voice, story in various kinds of language etc

5. sound duration: 1-180s for each button

6. Button: 1-12 buttons as require

7. Sound format: MP3/WAV

8. Power by: cell battery, AA/AAA

9. Battery life: can play music /sound for more than 800 times

10. Certificate:CE ROHS FCC