This project enables you to listen to a conversation (or a bird in a tree, etc) beyond what you would normally hear. It uses the principle of a directional microphone.
•PCB and parts supplied.
•A plastic bowl or similar is required for the reflector.
•Requires 9V battery.
Instructions sold separately or withing the Short Circuits book range,
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|Kit Form||Short Form (circuit only)|
|Kit Group||Short Circuit Series|
|Contains High Voltage Components|
|Application Field||Bionic Ear|
|Additional required items||9V Battery|
|Volume Number||Volume 2|