Make a SPY Electronic Stethoscope

by drdan152

9.2K35

Intro: Make a SPY Electronic Stethoscope

Just follow the link....its part of my other instructable! Make the ultimate receiver for the "MintyBeam" and see the last step!

https://www.instructables.com/id/MintyBeam-Bug-a-room-and-transmit-voice-over-a-la/#step1