KELVIN® Big Ear Bulk Pack

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Bulk Pack of 10 - As Low As $16.00 Per Kit!

Amplify sounds from different sources (far away, birds, conversations. Add a parabolic reflector and hear blocks away. This kit contains all parts necessary to build 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.