ProtoArc

EM02

The ProtoArc EM02 is an affordable, ergonomic thumb trackball with multi-device connectivity and silent clicks, but lacks button customization and horizontal scrolling.

Summed up from 6 published reviews

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What reviewers like

Affordable price with strong value for money 1 2 3 6
Ergonomic adjustable tilt reduces wrist strain 1 2 3 4
Multi-device pairing via Bluetooth and 2.4GHz 1 2 3 4
Silent clicks ideal for quiet environments 1 3 4 5
Long battery life with USB-C charging 1 2 3 4

What they don't

No button customization or remapping software 1 2 3 4
Lacks horizontal tilt scroll functionality 1 3 4
macOS forward/back buttons not supported 1 4
Trackball learning curve requires adaptation time 2 4 6

Best for

Budget ergonomic trackball for multi-device office use

Skip it if

Need programmable buttons, horizontal scroll, macOS full support

Where it fits

hand: Right
use: Wrist relief
buttons: Two
connection: Wireless

Specs

Type: Trackball
Hand: Right hand
Side buttons: Standard
Wireless: Yes
Size: Medium

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Questions

Is the ProtoArc EM02 worth it?

The ProtoArc EM02 is an affordable, ergonomic thumb trackball with multi-device connectivity and silent clicks, but lacks button customization and horizontal scrolling.

What do reviewers like about the ProtoArc EM02?

Affordable price with strong value for money. Ergonomic adjustable tilt reduces wrist strain. Multi-device pairing via Bluetooth and 2.4GHz. Silent clicks ideal for quiet environments. Long battery life with USB-C charging.

What are the downsides of the ProtoArc EM02?

No button customization or remapping software. Lacks horizontal tilt scroll functionality. macOS forward/back buttons not supported. Trackball learning curve requires adaptation time.

Who should buy the ProtoArc EM02?

Budget ergonomic trackball for multi-device office use. Skip it if need programmable buttons, horizontal scroll, macOS full support.

Sources

We don't test products ourselves. This page sums up 6 published reviews, read on October 24, 2026; each point above links to the reviews that make it.