Quantity   Component name
2 × 6mm Tact Switch
1 × Micro USB Breakout
1 × DFRobot Arduino nano https://www.hackster.io/products/buy/26027?s=BAhJIhY1OTU3MCxCYXNlQXJ0aWNsZQY6BkVG%0A
1 × DFRobot 128x128 OLED https://www.hackster.io/products/buy/26028?s=BAhJIhY1OTU3MCxCYXNlQXJ0aWNsZQY6BkVG%0A
1 × DFRobot 3W 8ohm Speaker https://www.hackster.io/products/buy/26029?s=BAhJIhY1OTU3MCxCYXNlQXJ0aWNsZQY6BkVG%0A