ProtoArc Wireless Trackball Mouse, EM01 NL Ergonomic Bluetooth Rollerball Thumb Rechargeable Computer Laptop Mouse, Adjustable Angle & 3 Device Connection for PC, Mac, Windows-Purple Ball
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AI Verdict
A 10.9-ounce trackball with 0-20 degree adjustable tilt and triple connectivity, for users prioritizing wrist comfort and multi-device control on a budget.
This trackball offers a unique 0-20 degree adjustable tilt and triple device connectivity, making it a strong contender for those prioritizing ergonomic customization and multi-device workflows. However, the lack of Mac OS compatibility for side buttons and no wired option means it's not a universal fit.
If Mac OS compatibility for all buttons or wired connectivity is essential, look for trackballs explicitly stating full Mac OS support and a wired mode.
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Pros
- Adjustable tilt from 0 to 20 degrees allows for varied hand positions and comfort.
- Connects to three devices via 2.4G wireless and Bluetooth, with quick switching via a dedicated button.
- Left and right click buttons operate quietly with short travel.
- Rechargeable 900 mAh battery with USB-C charging, reported to last up to 90 days.
- Thumb-controlled 34mm trackball is easily removable for cleaning and maintenance.
Cons
- The middle scroll wheel click is noticeably louder and heavier than the left/right buttons.
- Forward/back buttons do not function on Mac OS without third-party software.
- All buttons are non-programmable, limiting customization.
- No wired connectivity option is available, relying solely on wireless modes.
- Some users report a slight delay when the mouse wakes up from idle.
Dimension Scores
The thumb-controlled trackball provides accurate tracking, but some users report slight jitteriness in precise applications like Photoshop and a delay waking from idle.
The adjustable 0-20 degree tilt and ergonomic shape are designed for comfort, though some users with very large hands found it slightly small and the flatter design might not suit everyone.
Triple connectivity (2.4G wireless and two Bluetooth channels) with seamless device switching is a strong feature for multi-device users.
Users describe it as feeling 'solid' for its price, with quiet main buttons and a removable trackball for maintenance, but the middle click is heavy and the tilt mechanism's hold can be weak.
Best For
- Users seeking to reduce wrist and arm strain with a trackball.
- Individuals needing to switch between up to three devices (PC, laptop, iPad) frequently.
- Workspaces with limited desk space where a traditional mouse is impractical.
- Budget-conscious buyers looking for an ergonomic trackball with adjustable tilt.
Not Recommended For
- Left-handed users, as its shape is specifically designed for right hands.
- Users requiring wired mouse connectivity for security or preference.
- Mac OS users who rely on forward/back buttons without installing third-party software.
Watch Out For
- The middle scroll wheel click is significantly heavier and louder compared to the quiet left/right clicks.
- Forward and back buttons are not compatible with Mac OS systems unless you install third-party remapping software.
- Some users experience a noticeable delay when the mouse wakes up from idle before the cursor moves.
- The tilting base's 'holding power' was reported as not the best by one user, requiring a workaround to maintain position.
- The trackball, while initially very smooth, may 'wear down' over time, though still remaining acceptable.
Full Specifications
| ASIN | B0CWV4X9ZZ |
| Brand | ProtoArc |
| Color | Purple Ball |
| Batteries | 1 Lithium Ion batteries required. |
| Item Weight | 10.9 ounces |
| Manufacturer | ProtoArc |
| Special Feature | Adjustable Angle, Ergonomic Design, Quiet, Rechargeable, Wireless |
| Item model number | EM01 NL |
| Product Dimensions | 4.33 x 2.95 x 0.04 inches |
| Connectivity Technology | 2.4G Wireless, Bluetooth |
| Movement Detection Technology | Trackball |
What Buyers Say
Users frequently highlight the adjustable tilt and multi-device connectivity as standout features, especially for its price point. While the main clicks are praised for being quiet, the middle click often draws criticism for its heavier, louder operation. Mac users should note the forward/back buttons don't work natively.
“Okay, so the tilt thing is actually kinda cool, really helps my wrist, but seriously, that middle click is LOUD and stiff, totally ruins the quiet vibe of the other buttons. Mac users, beware those side buttons!”
Common Praise
- Adjustable tilt from 0 to 20 degrees provides customizable wrist comfort.
- Seamless switching between up to three connected devices (one 2.4G, two Bluetooth).
- Left and right click buttons are notably quiet and have light travel.
- Rechargeable via USB-C, with a battery life reported to last several weeks or up to 90 days.
- The 34mm trackball is very smooth out of the box and is easily removable for cleaning.
Common Complaints
- The middle scroll wheel click is significantly louder and requires more force than the main buttons.
- Forward and back buttons do not function on Mac OS without installing additional software.
- A noticeable delay occurs when the mouse wakes up from idle before the cursor responds.
- Some users found the tilting base didn't hold its position firmly enough.
- The mouse lacks a wired connection option, relying solely on wireless modes.
Ownership Tips
- The trackball's initial 'impressively smooth' feel might slightly diminish after a few weeks of use, but it remains functional.
- Regular cleaning of the trackball and its internal rollers is necessary to maintain smooth operation, especially if you experience any stickiness.
- The absence of a direct battery life indicator on the mouse means you might rely on the low battery LED or Bluetooth connection status for charge monitoring.
- The RGB lighting around the trackball can be turned off if found distracting.
- The non-programmable buttons mean you're stuck with their default functions.
Frequently Asked Questions
Can I use this mouse with multiple computers?
Yes, it supports connecting to three devices simultaneously via one 2.4G wireless dongle and two Bluetooth connections, allowing you to switch between them with a button press.
Are the buttons silent?
The left and right click buttons are designed for quiet operation. However, the middle scroll wheel click is not silent and has a heavier feel.
Is the trackball removable for cleaning?
Yes, the 34mm trackball can be easily removed, typically by pushing it out from the underside with a pen, to clean the ball and internal rollers.
Does it work with Mac OS?
It is compatible with Mac OS for basic cursor movement and clicking. However, the forward and back buttons are not functional on Mac OS without installing third-party remapping software.
How long does the battery last?
The built-in 900 mAh rechargeable lithium battery can last for several weeks, with some users reporting up to 90 days on a single full charge.
Buying Guide
When you're looking at trackball mice, you're usually trying to save your wrist or desk space. The big deal here is how it feels in your hand and how accurately that ball tracks. You want a trackball that lets your hand stay relaxed and doesn't make you stretch or strain.
Adjustable Angle (0-20 degrees)
This isn't just a gimmick; it lets you tilt the mouse to find a more natural, comfortable angle for your wrist, like adjusting your car seat for a better driving posture.
Triple Device Connection (2.4G Wireless, Bluetooth)
Think of it like having one remote control that can instantly switch between your TV, soundbar, and streaming box. This mouse lets you jump between your desktop, laptop, and tablet without re-pairing or moving dongles.
DPI Levels (200-1600)
DPI (dots per inch) controls how fast your cursor moves across the screen for a given amount of trackball movement. Higher DPI means less thumb movement for the same cursor travel, like having a more sensitive steering wheel in a video game.
Alternatives
If you need full button programmability or guaranteed native Mac OS support for all buttons, look for trackballs that specifically advertise these features.
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