Quantity   Component name
1 × Teensy 3.1 http://store.hackaday.com/products/teensy-3-1
1 × Electret Microphone Amplifier - MAX9814 with Auto Gain Control https://www.adafruit.com/products/1713
1 × Breadboard
2 × Neopixel Ring https://www.adafruit.com/products/1643
2 × Resistor
1 × Jumper Wires