Quantity   Component name
1 × Bluefruit EZ Key-12 https://www.adafruit.com/product/1535
1 × 30Φ Mushroom switch 1a type
2 × Push Switch RC1121 FUJIX push switch
1 × Foot Switch (DPDT) Basic foot switch for guitar effectors etc.
1 × TS Sloped Aluminium Case TS-3. By Takachi Electric Industries.
2 × Φ22 TW Switch 1a type.
1 × 5V ac adaptor (generic) Something to power the EZ-Key with.