Quantity   Component name
1 × Sound Processing Shield a separate Project on his site
1 × Adafruit PowerBoost 500 Shield optional but strongly recommended
1 × 2.8" TFT Touch Shield for Arduino with Capacative Touch for the Hand-Held version; an option for Pocket
1 × Arduino Leonardo Or any other Arduino main board that comes without headers
1 × Adafruit Bluetooth LE SPI Friend optional, for control via Bluetooth
1 × 3.5mm TRRS plug
1 × microphone preferably electret, but the Throat version requires piezoelectric; see Description
1 × low profile speaker choose what fits the overall project; see Description
1 × 3.3V 2500mAh Lithium Ion battery Adafruit's battery specially suited for the PowerBoost Shield (though you may personally prefer the 2000mAh or lower)
1 × 2x3 male header
1 × Stacking header set for Arduino one 6-pin, two 8 pin, and one 10-pin rows