![Aimos Usb Audio Volume Controller Knob, Volume Adjuster Rotary Computer Speaker Volume Control Switch For Win7/8/10/xp/mac/vista - Kvm Switches - AliExpress Aimos Usb Audio Volume Controller Knob, Volume Adjuster Rotary Computer Speaker Volume Control Switch For Win7/8/10/xp/mac/vista - Kvm Switches - AliExpress](https://ae01.alicdn.com/kf/H300d83998a3f47169ef20b62e2a2d45br/AIMOS-USB-Audio-Volume-Controller-Knob-Volume-Adjuster-Rotary-Computer-Speaker-Volume-Control-Switch-For-Win7.jpg)
Aimos Usb Audio Volume Controller Knob, Volume Adjuster Rotary Computer Speaker Volume Control Switch For Win7/8/10/xp/mac/vista - Kvm Switches - AliExpress
![Griffin PowerMate Multimedia Control Knob for USB Computers, Black - Assignable USB multimedia controller (9d17dd30e8444a57794f02ecaf6e3849) - PCPartPicker Griffin PowerMate Multimedia Control Knob for USB Computers, Black - Assignable USB multimedia controller (9d17dd30e8444a57794f02ecaf6e3849) - PCPartPicker](https://images-na.ssl-images-amazon.com/images/I/31ro6J5fZ8L.jpg)
Griffin PowerMate Multimedia Control Knob for USB Computers, Black - Assignable USB multimedia controller (9d17dd30e8444a57794f02ecaf6e3849) - PCPartPicker
![1: The PowerMate by Griffin Technologies was used as the knob like device. | Download Scientific Diagram 1: The PowerMate by Griffin Technologies was used as the knob like device. | Download Scientific Diagram](https://www.researchgate.net/publication/39066030/figure/fig12/AS:497527297449985@1495631159696/The-PowerMate-by-Griffin-Technologies-was-used-as-the-knob-like-device.png)
1: The PowerMate by Griffin Technologies was used as the knob like device. | Download Scientific Diagram
![Griffin PowerMate Bluetooth review: The Griffin PowerMate Bluetooth adds a sleek programmable control knob to your Mac (first take) - CNET Griffin PowerMate Bluetooth review: The Griffin PowerMate Bluetooth adds a sleek programmable control knob to your Mac (first take) - CNET](https://www.cnet.com/a/img/resize/968f11b5c5495a164860fbe3f2fd28bcb41fe162/hub/2014/01/05/e0ef1461-84ca-11e3-beb9-14feb5ca9861/Griffin_PowerMate_large.jpg?auto=webp&width=1200)