Hand-crank Audio Cube
Hand-Crank Audio Cube – Interactive Sound Experience for Outdoor Learning
Our custom-built audio cube, designed for NaturGut Ophoven near Leverkusen, combines sustainable energy generation with engaging audio playback. Visitors generate power by hand-cranking, then listen to nature-themed content via two EH240 mono headphones
Key Features
✔ Two Independent Listening Stations – Dual hand cranks power separate audio channels
✔ Manual Energy Generation – No external power needed (eco-friendly operation)
✔ Multiple Audio Tracks – Selectable via rotary switch
✔ Fully Mobile Design – Sturdy stainless steel frame with swivel casters
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Custom Graphics – 5 digitally printed panels (4-color process) with:
Child-friendly pictograms
Nature-themed illustrations
Photo-realistic image processing
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✔ Durable Finish – Scratch-resistant matte laminate coating