Quantity   Component name
1 × Bluetooth headphones I used Sony DR-BT22 (good choice, but old model) or Sony DR-BT101 (too big)
2 × DAI connectors
2 × Right angle audo cables
2 × 3.5 mm audio jacks Stereo or mono; I'm sure 2.5 mm jacks would work well too!
2 × 270kohm resistors Attenuates the audio signal