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$1.39

Original: $3.97

-65%
Paper Cup Speaker—

$3.97

$1.39

The Story

Features

  • A fun child’s experiment toy
  • Learn how to convert electrical signals into sound waves
  • Amplify your music with this D-I-Y cup speaker
  • STEM product – Science, technology, engineering and mathematics

Description

Features

  • A fun child’s experiment toy
  • Learn how to convert electrical signals into sound waves
  • Amplify your music with this D-I-Y cup speaker
  • STEM product – Science, technology, engineering and mathematics