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ProtoArc EM05 NL Wireless Vertical Trackball Mouse, 5 DPI Levels, Purple | 62° Vertical Design Supports a Natural Wrist Posture, Connect 3 Devices Via Bluetooth/2.4G USB-A, 500mAh Rechargeable Battery
ProtoArc

ProtoArc EM05 NL Wireless Vertical Trackball Mouse

Bottom line: The ProtoArc EM05 NL Wireless Vertical Trackball Mouse ($42.72 on Amazon as of 2026-10-07): 62-degree vertical tilt keeps your wrist and arm relaxed through all-day use; main trade-off: takes a 1-2 week learning curve to adjust from a standard optical mouse.

$42.72

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Buy on Amazon — $42.72 Compare to similar gaming peripherals

By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014. For keyboards, mice, headsets and other PC peripherals, synthesises manufacturer specs and independent reviews rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

*Price sourced from Amazon.com. Last updated 2026-10-07. Price and availability subject to change.

Pros & Cons

Pros

  • ✓ 62-degree vertical tilt keeps your wrist and arm relaxed through all-day use
  • ✓ Triple connection (2.4G + BT 5.1 + BT 3.0) controls 3 devices, switched with one button
  • ✓ Thumb trackball works on your lap, sofa, or cramped desk—no mousing space needed
  • ✓ 5 adjustable DPI levels (200/400/800/1200/1600) for tunable cursor sensitivity

Cons

  • ✗ Takes a 1-2 week learning curve to adjust from a standard optical mouse
  • ✗ All buttons are non-programmable, so no custom remapping
  • ✗ Back/forward buttons do not work on Mac OS
  • ✗ Trackball needs periodic cleaning to keep tracking smoothly

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SpecPicks Verdict

SpecPicks scored ProtoArc EM05 NL Wireless Vertical 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.

Key Features

  • Ergonomic Design for Natural Grip: The vertical design of a 62 degree tilt and natural handshake can perfectly fit the palm of your hand, keeping your arms and wrists in a relaxed state, so that you won't feel tired after a day of work
  • Bluetooth & 2.4G Wireless Connection：PLUG and PLAY. This trackball mouse has triple connection modes(2.4G+BT 5.1+BT 3.0). You can control three devices at the same time, switch freely between Android, tablet and Mac with just one button. Note: all the buttons are non-programmable and the backward forward buttons are not compatible with Mac OS system
  • Thumb Trackball Mouse: Equipped with a smooth trackball, move your cursor with your thumb movement instead of moving your wrist and arm. It will effectively reduce fatigue and strain for your wrist and arm. Not only work on flat surfaces, but also on your leg, sofa and other surfaces as well, especially in a narrow space, such as the messy desktop
  • Rechargeable & Quiet Clicking: The vertical trackball mouse equipped with a build-in rechargeable battery, could be recharged easily with the included USB-C cable. Please remember to turn it off if you do not use it for a long time. 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
  • Wide Compatibility & Adjustable DPI: This vertical rollerball mouse is suitable for laptop/PC/notebook/tablet/Macbook/ipad/iPhone. It is compatible with Windows, Android, Mac OS etc. 5 DPI levels (200/400/800/1200/1600 DPI) allows you to change the cursor sensitivity easily for more precise tracking
  • 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

BrandProtoArc
ColorPurple
Range10 meters
FinishMatte
Weight2.4g
Model NameEM05 NL
Style NameModern
Unit Count1 Count
ConnectivityBluetooth, USB-C, 2.4GHz
Model NumberEM05 NL
Power SourceBattery Powered
CompatibilityPC, Switch, Android, iOS, Mac
Button Quantity6
Connection TypeWireless
Mfr Part NumberEM05 NL
Special FeatureErgonomic Design, Rechargeable, Soundless, Wireless
Antenna LocationOffice
Hand OrientationRight
Hardware PlatformMac, PC
Compatible DevicesLaptop, Mac, Personal Computer, Smartphone, Tablet, iPad
Full listing titleProtoArc EM05 NL Wireless Vertical Trackball Mouse, 5 DPI Levels, Purple | 62° Vertical Design Supports a Natural Wrist Posture, Connect 3 Devices Via Bluetooth/2.4G USB-A, 500mAh Rechargeable Battery

Ready to buy?

ProtoArc EM05 NL Wireless Vertical Trackball Mouse, 5 DPI Levels, Purple | 62° Vertical Design Supports a Natural Wrist Posture, Connect 3 Devices Via Bluetooth/2.4G USB-A, 500mAh Rechargeable Battery 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.

Buy on Amazon — $42.72

*Price sourced from Amazon.com. Last updated 2026-10-07. Price and availability subject to change.

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ProtoArc EM05 NL Wireless Vertical Trackball Mouse, 5 DPI Levels, Purple | 62° Vertical Design Supports a Natural Wrist Posture, Connect 3 Devices Via Bluetooth/2.4G USB-A, 500mAh Rechargeable Battery
$42.72
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