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
Nakabayashi Digio2 Q MUS-TRLF184
A pocket-sized wireless index-finger trackball with a 34 mm ball, 5 buttons and a 2.4 GHz USB receiver.
Key specs auto-matched against source pages · Last verified: 2026-10-17
~¥7,280
Where to buy
No US retailer found yet.
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Pros
- Compact at 65×98×41 mm and 93 g, easy to carry
- Receiver can be stored in the body
- Wheel and back/forward buttons are customizable with Digio2 Mouse Setting
- Runs on one AAA battery, rated about 383 days
Cons
- No Bluetooth; USB receiver only
- Relatively small 34 mm ball
- Listed as sold out with no restock date on the Rakuten page
Specs
| Handedness | Right |
|---|---|
| Ball size | 34 mm |
| Ball position | Finger |
| Buttons | 5 |
| Scroll | Wheel |
| Weight | 93 g |
| Connectivity | USB receiver |
| OS | windows, macos, chromeos |
| Released | — |
Sources
AD · detail-mid
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