Quantity   Component name
1 × Raspberry Pi 3B
1 × USB Stereo Audio Capture Card DriverGenius AV202-B USB2.0 Audio Capture/Grabber Card Device - Amazon.com
2 × Microphone w/Preamp Adafruit #1063
2 × Shielded Audio Cable Adafruit #876
1 × DC-DC Converter Digikey 102-6292-ND
1 × 5V DC Regulator Digikey 497-1009-ND
2 × 100uH Inductor Digikey RLB0912-101KL-ND
3 × 3.5mm Stereo Phono Jack Adafruit #1699
1 × Proto Board Adafruit #1609
1 × Brass Tubing - 14mm OD Amazon.com B09XJ4FMM9
1 × Brass Screen - 60 Mesh Amazon.com B092L9SFS8