It’s finally here, featuring onboard memory.
On September 11, 2026, ProtoArc announced on its official X account that it had begun accepting pre-orders for the “EM06,” a finger-operated trackball.
The regular price is $89.99.
The pre-order price is $72, which is 20% off.
In addition, if you use the discount code “N9CFDX2MD1Q2,” you’ll get an extra 10% off, bringing the price down to $64.79.
The discount period runs from September 10 to September 30, and pre-ordered items are scheduled to be shipped starting September 30, 2026.
This symmetrical model features a large 55mm ball in the center and offers seven customizable buttons.
It also supports four onboard profiles that allow you to save settings to the device.
ProtoArc EM06 Sales Information
| Item | Details |
|---|---|
| Product Name | ProtoArc EM06 |
| Product Type | Finger-Operated Trackball |
| Regular Price | $89.99 |
| Pre-order Price | $72 ($64.79 with a coupon) |
| Shipping Begins | Starting September 30, 2026, in stages |
| Color | Black |
| Warranty Period | 2 years |
The official product page states that pre-ordered items will be shipped in phases starting September 30, 2026.
Please note that shipping dates may vary depending on order volume.
In addition, you will need to confirm whether shipping to Japan is available, as well as shipping costs and import taxes, during the checkout process.
Features a large 55mm center ball
The EM06 is a finger-operated model featuring a 55mm trackball positioned in the center of the unit.
It features a symmetrical design, making it suitable for use with either the right or left hand.
The main unit also features a built-in wrist rest that supports the palm.
Ruby static bearings are used to support the ball.
Two PAW3212 optical sensors are used to track the cursor.
On the left side are the power button, two buttons, and a connection indicator.
At this point, it is not clear what functions the buttons on the side serve.
Considering its spherical shape, isn’t the main body actually quite thin?
| Item | (technical) specification |
|---|---|
| Ball diameter | 55mm |
| Operation method | Finger Controls |
| sensor | PAW3212 × 2 |
| Tracking method | Optical Dual Sensor |
| Support Balls | Ruby Static Bearings |
| DPI | 200–1,600 DPI, 5 levels |
| Main Chip | CX52850F |
| Countermeasures | Right Hand / Left Hand |
| List Support | Integrated into the main unit |
All 7 buttons are customizable
The EM06 is equipped with a total of 7 customizable buttons.
It appears that shortcuts, commands, and various functions can be assigned according to the user’s environment.
Since the ProtoArc web-based configuration tool is used for configuration, there is no need to download or install a desktop application.
The supported browsers are as follows.
- Google Chrome
- Microsoft Edge
- Opera
This software is compatible with Windows and macOS.
Web Configuration Tool: https://www.protoarc.com/products/em06-customizable-finger-trackball-mouse
However, when using the Web configuration tool, you must connect the EM06 to your computer using a USB Type-C cable .
There is no indication that you can configure the settings while still connected via Bluetooth or 2.4 GHz.
Save the four onboard profiles to the device
The EM06 supports up to four onboard profiles.
Since settings such as button assignments are saved directly to the mouse itself, there is no need to keep the configuration tool running in the background.
| Item | Details |
|---|---|
| Save To | EM06 Main Unit |
| Maximum Number of Entries | Up to 4 profiles |
| Configuration method | Web-Based Configuration Tool |
| Installing the App | Not required |
| Connection During Setup | A USB Type-C connection is required |
| After configuration | Settings Remain Available Even If You Change the Connection Destination |
The ability to save data to onboard memory is a major advantage in environments where it is difficult to install dedicated software, such as on shared computers or work terminals.
Once you’ve configured the settings in the web tool, you can use the same button assignments even when connecting to a different computer.
Greenkeys OfficeThis is probably the part of the EM06 that deserves special attention this time around.
Supports vertical and horizontal scrolling using a ball
The EM06 supports scrolling using the main trackball.
You can scroll not only vertically but also horizontally.
However, the official product page does not provide detailed instructions on the specific button commands for switching to scroll mode or how to switch between scroll mode and cursor control.
Since there doesn’t appear to be a separate scroll ring or standard scroll wheel on the device itself, it would be a good idea to check how it actually works before purchasing.
Compatible with USB, 2.4 GHz, and Bluetooth
There are three connection methods: USB Type-C, 2.4 GHz, and Bluetooth.
You can register two Bluetooth devices, and combined with the 2.4 GHz connection, you can connect wirelessly to up to three devices.
| Connection methods | Destination |
|---|---|
| Bluetooth | 2 units |
| 2.4GHz | 1 unit |
| USB Type-C | Wired connection |
| Number of Wireless Registrations | Up to 3 |
The battery capacity is 930 mAh, and it supports charging via USB Type-C. It can be used even while connected via a cable.
I couldn’t find any specific figures regarding continuous usage time on the official product page.
accessory
The contents listed on the official website are as follows:
- ProtoArc EM06 Main Unit
- 2.4GHz USB receiver
- USB Type-C Charging Cable
- Carrying case
- User Manual
Since a carrying case is included as standard, it seems well-suited for transporting the device to multiple work locations.
Summary
That concludes our coverage of the news that pre-orders for the ProtoArc EM06 have begun.
As for the EM06, you can see on their YouTube channel that it was developed in collaboration with the trackball community.
What really stands out is that, in addition to the onboard memory, track scrolling has been implemented.
Regarding this, the competing Elecom HUGE Plus is scheduled to include this feature, but it has been announced that its development has been delayed.
In addition, with Kensington releasing the “TB900”—which addresses the issues found in its predecessor, the TB800—the EM06 is entering a market crowded with powerful competitors.
I’m looking forward to seeing what kind of presence they’ll make in the future.
- Originally published:
- Last updated:
- Method of coverage: See official manufacturer release and official SNS postings
- References/Citations:
- Conflicts of Interest: Product provided: None Monetized links in this article: None
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