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KELVIN® Big Ear Bulk Pack

Price: $87.95
Stock #: 842239
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Product Description

Amplify sounds from different sources (far away, birds, conversations. Add a parabolic reflector and hear blocks away. This kit contains all parts necessary tobuild an ultra sensitive listening device. Use a funnel or design your own reflective parabolic dish. Requires a 9V battery and a parabolic reflector. Does not include enclosure, use #430202. Enough for 10 Students.

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