ProtoArc
ProtoArc Wireless Trackball Mouse
Bottom line: The ProtoArc Wireless Trackball Mouse ($49.99 on Amazon as of 2026-10-06): Hinge tilts the ball 0-20 degrees to match your natural wrist angle; main trade-off: back/forward side buttons do not work under macOS.
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*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.
Pros & Cons
Pros
- ✓ Hinge tilts the ball 0-20 degrees to match your natural wrist angle
- ✓ Pairs 3 devices at once; one-button switching across PC, Mac, and tablet
- ✓ 5 DPI steps (200/400/800/1200/1600) for fine edits or multi-monitor sweeps
- ✓ Thumb-driven cursor works in tight spaces - couch, bed, cluttered desk
- ✓ Rechargeable lithium cell replaces disposable AA batteries entirely
Cons
- ✗ Back/forward side buttons do not work under macOS
- ✗ All buttons are non-programmable - no custom button mapping
- ✗ Middle scroll wheel is not quiet, unlike the main clicks
- ✗ Ball and three inner rollers need periodic cleaning to stay smooth
Manufacturer description
The ProtoArc EM01 NL wireless trackball mouse moves the cursor with your thumb instead of your whole arm, so you can work from a cramped desk, a couch, or a bed without sweeping space. Its adjustable hinge tilts the trackball anywhere from 0 to 20 degrees, letting you dial in a hand angle that feels natural through a long session. Triple connectivity - Bluetooth plus a 2.4G receiver - pairs three devices at once and switches between your PC, laptop, and tablet with a single button, and it works across Windows, macOS, and Android. Five DPI levels (200/400/800/1200/1600) let you slow the…
SpecPicks Verdict
SpecPicks scored ProtoArc Wireless Trackball Mouse using a rating × review-volume × price-fit model applied to published specs and reviews across the gaming peripherals category. ProtoArc's gaming peripherals lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for gaming peripherals of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Frequently Asked Questions
Does the ProtoArc EM01 NL work with a Mac?
Yes - it is compatible with macOS, Windows, and Android. One caveat: ProtoArc notes the back and forward side buttons are not compatible with macOS, so those two will not function on a Mac.
How many devices can I connect at the same time?
Three. The EM01 NL supports Bluetooth plus 2.4G wireless and holds three device connections simultaneously, so you can switch between a PC, a laptop, and a tablet with a single button press.
Does it use batteries or is it rechargeable?
It has a built-in rechargeable lithium battery, so there are no AA or AAA batteries to replace. ProtoArc recommends powering it off if you will not use it for an extended period.
How hard is it to switch from a regular mouse to a trackball?
Expect a learning curve. ProtoArc recommends allowing one to two weeks to adapt and experimenting with hand positions. Your thumb drives the cursor, so your arm stays still.
Can I change the cursor sensitivity?
Yes, there are 5 DPI levels: 200, 400, 800, 1200, and 1600. You can step through them to slow the cursor for precise work or speed it up for large or multiple displays.
Key Features
- Ergonomic Design for More Comfort: Unique adjustable hinge allows you to customize the trackball angle from 0 to 20 degrees according to your needs, ensuring a more natural, comfortable hand position for all-day comfort
- Precise Thumb Mouse: ProtoArc trackball mouse provides accurate and smooth tracking, allowing for easy navigation through documents and web pages. You no longer need to move your arm for the movement of the cursor. Your thumb will control the cursor instead via the trackball. It will effectively reduce fatigue and strain on your wrist and arm. More productive in the narrow space, such as the messy desktop, couch, bed etc
- Bluetooth & 2.4 G Wireless Connection: PLUG and PLAY. This trackball mouse has triple connection modes. You can control three devices at the same time, switch freely between PC, laptop and iPad with just one button to improve your efficiency. Compatible with Windows, Android, Mac OS PC Laptop Desktop etc
- Rechargeable & Adjustable DPI: The bluetooth Trackball Mouse built-in rechargeable lithium battery. No need to change batteries. Please remember to turn it off if you do not use it for a long time. 5 DPI levels (200/400/800/1200/1600) allows you to change the cursor sensitivity easily and track more smoothly
- Quiet Clicking: Smooth frosted surface and quiet clicks can bring a better user experience and free your worry about bothering others and keep you stay focused while working. Note: The middle scroll wheel is not silent. All the buttons are non-programmable and the back forward buttons are not compatible with Mac OS system
- After using the trackball for a period of time, please clean the trackball and the three white rollers inside the hole to ensure that the trackball is always smooth. Note: When the computer is just started or a large application is running, it may also cause the trackball to not run smoothly
Full Specifications
| Brand | ProtoArc |
|---|---|
| Color | Red Ball |
| Range | 10.0 meters |
| Theme | Office |
| Finish | Matte |
| Weight | 2.4 g |
| Style Name | Modern |
| Unit Count | 1.0 Count |
| Connectivity | Bluetooth |
| Model Number | EM01 NL |
| Power Source | Battery Powered |
| Compatibility | PC, Switch, Android, Mac |
| Built-In Media | A Type C Charging Cable, A USB Receiver, A User Manual, An Ergonomic Trackball Mouse |
| Button Quantity | 8 |
| Connection Type | Wireless |
| Mfr Part Number | Protoarc B0CWTVY6WQ |
| Special Feature | Adjustable Angle, Ergonomic Design, Quiet, Rechargeable, Wireless |
| Antenna Location | Office |
| Hand Orientation | Right |
| Hardware Platform | Linux |
| Full listing title | ProtoArc Wireless Trackball Mouse, EM01 NL Ergonomic Bluetooth Rollerball Thumb Rechargeable Computer Laptop Mouse, Adjustable Angle & 3 Device Connection for PC, Mac, Windows-Red Ball |
Ready to buy?
ProtoArc Wireless Trackball Mouse, EM01 NL Ergonomic Bluetooth Rollerball Thumb Rechargeable Computer Laptop Mouse, Adjustable Angle & 3 Device Connection for PC, Mac, Windows-Red Ball is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.
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