Quantity   Component name
1 × arduino uno
1 × arduino nano microcontroller
1 × Voltage regulator 12v-(3.3v & 9v)
3 × 1k resistors
2 × Nrf24 tranceiver module
3 × 12v led
3 × 7.7k resistors
1 × 12v battery
1 × 9v battery
1 × bluetooth audio receiver
2 × Speaker