Quantity   Component name
1 × 940nM IR LED
1 × Arcade Button built in LED + 220 ohm resistor
1 × Arduino Leonardo Pro Micro
1 × Lipo Battery 3.7v
1 × 2n2222 transistor
1 × Lipo battery charger
1 × 5V DC-DC boost converter
1 × Enclosure
1 × On/off button