Quantity   Component name
1 × Arduino Uno R3 https://www.digikey.ca/en/products/detail/arduino/A000066/2784006
1 × HC-SR04 https://www.digikey.ca/en/products/detail/adafruit-industries-llc/3942/9658069
1 × Speaker https://www.digikey.ca/en/products/detail/cui-devices/CDS-25148-L100/5355540
1 × TIP 122 https://www.digikey.ca/en/products/detail/onsemi/TIP122G/920327
1 × Various Jumper Wires