ProtoArc
ProtoArc EM01 NL Wireless Trackball Mouse
Bottom line: The ProtoArc EM01 NL Wireless Trackball Mouse ($33.99 on Amazon as of 2026-10-07): Hinge tilts 0-20 degrees to set a neutral wrist angle; main trade-off: scroll wheel is not silent, unlike the main clicks.
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*Price sourced from Amazon.com. Last updated 2026-10-07. Price and availability subject to change.
Pros & Cons
Pros
- ✓ Hinge tilts 0-20 degrees to set a neutral wrist angle
- ✓ Thumb-driven cursor means your arm never moves
- ✓ Pairs 3 devices at once over Bluetooth plus 2.4G USB-A
- ✓ 5 DPI steps: 200/400/800/1200/1600
- ✓ Rechargeable battery, no AA swaps
Cons
- ✗ Scroll wheel is not silent, unlike the main clicks
- ✗ No programmable buttons at all
- ✗ Back/forward buttons do not work on macOS
- ✗ ProtoArc says expect a 1-2 week learning curve
Manufacturer description
The ProtoArc EM01 NL is a thumb-operated wireless trackball mouse built for desks where you have no room to swing a conventional mouse. Its hinge adjusts from 0 to 20 degrees, so you can tilt the body until your wrist sits in a neutral position instead of flat on the desk all day. Because the cursor moves under your thumb, your arm stays parked, which makes the EM01 NL workable on a couch, a bed, or a crowded desktop. Triple-device connectivity covers Bluetooth and 2.4G USB-A, letting you pair a PC, a laptop, and an iPad at once and jump between them with one button. It works with Windows…
SpecPicks Verdict
SpecPicks scored ProtoArc EM01 NL 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
How many devices can the ProtoArc EM01 NL connect to at once?
Three. It runs tri-mode connectivity across Bluetooth and a 2.4G USB-A receiver, and one button switches between a PC, laptop, and iPad.
Does it work with a Mac?
Yes, it is compatible with Windows, macOS, and Android. Note that the back and forward side buttons are not supported on macOS, and no buttons are programmable.
Are the clicks actually silent?
The left and right clicks are quiet by design, but ProtoArc states the middle scroll wheel is not silent.
What DPI settings does it offer?
Five levels: 200, 400, 800, 1200, and 1600 DPI, switchable on the fly to change cursor sensitivity.
How long does it take to get used to a thumb trackball?
ProtoArc recommends 1 to 2 weeks. Most buyers work through the learning curve.
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 help reduce wrist and arm strain. More productive in the narrow space, such as the messy desktop, couch, bed etc
- Bluetooth & 2.4 G Wireless Connection: PLUG and PLAY. This wireless trackball mouse has tri-mode connectivity. 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 has a rechargeable battery. No need to change batteries. Please remember to turn it off if you do not use it for a long time. It with adjustable dpi has 5 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 | Purple Ball |
| Range | 10.0 meters |
| Theme | Office |
| Finish | Glossy or Matte |
| Weight | 2.4 g |
| Model Name | EM01-NL |
| Style Name | Modern |
| Unit Count | 1 Count |
| Connectivity | Bluetooth, USB, 2.4GHz |
| 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 | EM01 NL |
| Special Feature | Adjustable Angle, Ergonomic Design, Quiet, Rechargeable, Wireless |
| Antenna Location | Business, Home, Office, Personal |
| Hand Orientation | Right |
| Full listing title | ProtoArc EM01 NL Wireless Trackball Mouse, Rechargeable Thumb Control Mice | 0/20° Adjustable Angle to Reduce Fatigue, Triple-Device Bluetooth & 2.4G USB-A for Office Use, Silent Click, Easy to Clean |
Ready to buy?
ProtoArc EM01 NL Wireless Trackball Mouse, Rechargeable Thumb Control Mice | 0/20° Adjustable Angle to Reduce Fatigue, Triple-Device Bluetooth & 2.4G USB-A for Office Use, Silent Click, Easy to Clean 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 2026-10-07. Price and availability subject to change.
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