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Sound Pad for Children's Book 1. Function: This sound device is installed into the Children's sound book. Children can press the buttons on each page to activate the sounds, to make their learning more easier and funny.
2. Duration time for sound: Each button can put 3-30 seconds sound.
3. Batteries: 2PCS CR2032 Bbutton cell (replaceable battaries)
4. Material for battery housing: ABS
5. Package: 200PCS/carton, MEAS of one carton: 43*27*21CM
CE&Rohs standards.
Customized design are welcome
