HouseholdHacker teaches you how to make a spy clock. You will need a cheap walkie talkie set and a battery powered clock. Fully disconnect the circuit board and cut the battery off from the walkie talkie. Also clip the microphone. You will want to glue the on/off button so it will always be on. Next, open up the clock and rewire the battery with the walkie talkie circuit board. Wire the walkie talkie into the speaker, inside the clock. The clock should look unopened. You're ready to go.
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