I built it using spare electronic parts, so there's no point in trying to list them here. But keep in mind:

• The button itself and volume knob adjuster are regular components from adafruit
• Speaker is also from adafruit, I don't remember the model.
• Cabling was repurposed form an OLD baofeng broken PTT
• MIC is from adafruit as well.

Tips:

• M2 screws
• The volume knob adjuster sits on the cradle on top of the speaker. Yea it works :) trust me…