Both you and your students' will love the Space Phone!
How could something as simple as two megaphone/ear trumpets connected by a helical coil spring produce such an amazing array of sounds? Excellent as an introduction to sound and wave theory. Your students will learn a lot from this gadget, if they can get it away from you long enough to play with it themselves! Instructions included.
Products being sold are not toys. They are for Educational / Laboratory use only. They are not for use by children 12 and under.
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