TrackballsKensington Expert Mouse Wired Trackball K64325
A wired USB symmetrical trackball with a 55 mm ball, a scroll ring and 4 buttons, supplied with a detachable wrist rest.
~$87.65
ProtoArc EM04
A low-priced, thumb-operated trackball with a 15° tilt, Bluetooth and 2.4GHz connectivity for up to 3 devices, and silent clicks.
Key specs auto-matched against source pages · Last verified: 2026-10-17
~$26.99
Where to buy
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Pros
- Switches between up to 3 devices over Bluetooth and 2.4GHz
- Silent left/right clicks with over 90% noise reduction
- Low price makes it easy to try as a first trackball
- USB-C rechargeable, up to 70 hours of continuous use
Cons
- Buttons are not programmable, and Forward/Back do not work on macOS or iOS
- Several reviewers found no good place to rest the little finger
- Some reviewers found fine cursor control slightly difficult
Specs
| Handedness | Ambidextrous |
|---|---|
| Ball size | 34 mm |
| Ball position | Thumb |
| Buttons | 7 |
| Scroll | Wheel |
| Weight | 199 g |
| Connectivity | Bluetooth, USB receiver |
| OS | windows, macos, ios, android, chromeos, linux |
| Released | — |
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