Griffin Powermate Multimedia Control Knob with Bluetooth Connectivity, Space Gray – Wirelessly, All, Volume Control Key Command : Electronics - Amazon.co.jp
Griffin Technology NA16029 PowerMate USB Multimedia Controller : Amazon.ca: Electronics
GitHub - EsotericSoftware/powermate: Control Windows volume using a Griffin PowerMate
Griffin PowerMate USB Controller - Remote Presence Magazine
Griffin Technology : Powermate Black | Sumally (サマリー)
1: The PowerMate by Griffin Technologies was used as the knob like device. | Download Scientific Diagram