After all, keyboards look cool in a case.
Recently, the left-right split keyboard with trackball, a derivative of the Keyball, has become very popular.
You may have noticed that recently there have been a number of smaller keyballs that have been making the rounds, such as moNa and roBa, which are compatible with wireless technology.
However, we should not forget torabo-tsuki.
torabo-tsuki is a “Keyball-sized” fully wireless left-right split keyboard with trackball, released by Sekigon, the developer of BLE Pro Micro.
Three types of series exist, depending on the number of keys.
![Review of the exclusive 3DP case for torabo-tsuki(S)(M) now available from Kobo Hal 1 e118dd2d 6d22 4438 8dac 5b4f62ca94ce](https://eynmoy2bh9v.exactdn.com/wp-content/uploads/2025/02/e118dd2d-6d22-4438-8dac-5b4f62ca94ce.jpg?strip=all&lossy=1&quality=70&ssl=1)
Perhaps the most revolutionary feature was the ability to move the trackball position.
However, some may think the look is a bit rugged because of the conventional sandwich construction of FR4 materials.
We recommend the 3DP case produced by Kobo Hal to such torabo-tsuki users.
In this article, we would like to introduce the case for torabo-tsuki.
![Review of the exclusive 3DP case for torabo-tsuki(S)(M) now available from Kobo Hal 2 Kawamura top R](https://eynmoy2bh9v.exactdn.com/wp-content/uploads/2022/07/Kawamura-top_R-150x150.jpeg?strip=all&lossy=1&quality=70&ssl=1)
Representative of GreenEchoes Studio
He launched his own media as a site operator and web writer, and now plans and manages multiple corporate media. He often types heavily in his work, and in his search for greater efficiency, he became addicted to the keyboard swamp and established “GreenKeys”.
[blog_parts id="41919"]
Review] 3DP Case for torabo-tsuki(S) by Hal
Let’s take a look at the actual product.
Let’s start with the complete system.
To match the black texture, Cannonkeys x Keyreative PBS Blanks Black keycaps and MX ERGO genuine ball were chosen for the trackball.
Hmmm, this is great.
![Review of the exclusive 3DP case for torabo-tsuki(S)(M) now available from Kobo Hal 3 20250203 SDIM0578 scaled](https://eynmoy2bh9v.exactdn.com/wp-content/uploads/2025/02/20250203-SDIM0578-scaled.jpg?strip=all&lossy=1&quality=70&ssl=1)
The structure of the case is a mounting image in which the screws on the bottom of the completed torabo-tsuki are removed and the case is “fitted” as it is.
![Review of the exclusive 3DP case for torabo-tsuki(S)(M) now available from Kobo Hal 4 20250202 SDIM0568 scaled](https://eynmoy2bh9v.exactdn.com/wp-content/uploads/2025/02/20250202-SDIM0568-scaled.jpg?strip=all&lossy=1&quality=70&ssl=1)
![Review of the exclusive 3DP case for torabo-tsuki(S)(M) now available from Kobo Hal 5 Kawamura top R](https://greenwaves.jp/keys/wp-content/uploads/2022/07/Kawamura-top_R-150x150.jpeg)
The variable trackball position mechanism of torabo-tsuki probably influenced the use of this structure.
torabo-tsuki has a rail-type trackball socket screwed into FR4 on the bottom, which allows fine adjustment to the left or right.
In order to take advantage of this mechanism, it was probably decided that the FR4 plate on the bottom should not be removed.
![Review of the exclusive 3DP case for torabo-tsuki(S)(M) now available from Kobo Hal 6 20250202 SDIM0567 scaled](https://eynmoy2bh9v.exactdn.com/wp-content/uploads/2025/02/20250202-SDIM0567-scaled.jpg?strip=all&lossy=1&quality=70&ssl=1)
![Review of the exclusive 3DP case for torabo-tsuki(S)(M) now available from Kobo Hal 7 20250203 SDIM0594 scaled](https://eynmoy2bh9v.exactdn.com/wp-content/uploads/2025/02/20250203-SDIM0594-scaled.jpg?strip=all&lossy=1&quality=70&ssl=1)
It’s very textured.
As for 3DP products, I have the impression that there are many overseas products with noticeable lamination marks or inadequate molding, but I have no such concerns with this case.
![Review of the exclusive 3DP case for torabo-tsuki(S)(M) now available from Kobo Hal 8 20250203 SDIM0593 scaled](https://eynmoy2bh9v.exactdn.com/wp-content/uploads/2025/02/20250203-SDIM0593-scaled.jpg?strip=all&lossy=1&quality=70&ssl=1)
It also covers all the side gaps, a weak point of the conventional torabo-tsuki.
Also, the thickness of this side wall is very nice.
It’s a wonderful sense of massed perfection.
![Review of the exclusive 3DP case for torabo-tsuki(S)(M) now available from Kobo Hal 9 20250203 SDIM0592 scaled](https://eynmoy2bh9v.exactdn.com/wp-content/uploads/2025/02/20250203-SDIM0592-scaled.jpg?strip=all&lossy=1&quality=70&ssl=1)
![Review of the exclusive 3DP case for torabo-tsuki(S)(M) now available from Kobo Hal 10 20250203 SDIM0572 scaled](https://eynmoy2bh9v.exactdn.com/wp-content/uploads/2025/02/20250203-SDIM0572-scaled.jpg?strip=all&lossy=1&quality=70&ssl=1)
Let us now look at the details of the case.
Let’s start with the battery case.
The main reason I fell in love with the Kobo Hal case is that the batteries do not show.
As for batteries, again, most commercial products inevitably have “patterns,” and it is difficult to find ones that emphasize looks, such as the “black eneloop” that once existed.
In this respect, this case covers the battery case space itself.
The neodymium magnets are used to stick them together, and it is wonderful that no tools are required when replacing them.
![Review of the exclusive 3DP case for torabo-tsuki(S)(M) now available from Kobo Hal 11 20250203 SDIM0575 scaled](https://eynmoy2bh9v.exactdn.com/wp-content/uploads/2025/02/20250203-SDIM0575-scaled.jpg?strip=all&lossy=1&quality=70&ssl=1)
![Review of the exclusive 3DP case for torabo-tsuki(S)(M) now available from Kobo Hal 12 20250203 SDIM0574 scaled](https://eynmoy2bh9v.exactdn.com/wp-content/uploads/2025/02/20250203-SDIM0574-scaled.jpg?strip=all&lossy=1&quality=70&ssl=1)
This battery case cover also serves as a USB terminal cover for the BLE Pro Micro.
Since torabo-tsuki is a fully wireless keyboard, it is reasonable to cover the unused terminal area for aesthetic reasons and to prevent the intrusion of pride.
![Review of the exclusive 3DP case for torabo-tsuki(S)(M) now available from Kobo Hal 13 20250203 SDIM0577 scaled](https://eynmoy2bh9v.exactdn.com/wp-content/uploads/2025/02/20250203-SDIM0577-scaled.jpg?strip=all&lossy=1&quality=70&ssl=1)
Next, let’s look at the power switch section.
In a normal torabo-tsuki, the power switch is located on the side.
However, with this case attached, on/off operation is possible from the front.
![Review of the exclusive 3DP case for torabo-tsuki(S)(M) now available from Kobo Hal 14 20250202 SDIM0569 scaled](https://eynmoy2bh9v.exactdn.com/wp-content/uploads/2025/02/20250202-SDIM0569-scaled.jpg?strip=all&lossy=1&quality=70&ssl=1)
This idea is really great.
![Review of the exclusive 3DP case for torabo-tsuki(S)(M) now available from Kobo Hal 15 20250202 SDIM0570 scaled](https://eynmoy2bh9v.exactdn.com/wp-content/uploads/2025/02/20250202-SDIM0570-scaled.jpg?strip=all&lossy=1&quality=70&ssl=1)
![Review of the exclusive 3DP case for torabo-tsuki(S)(M) now available from Kobo Hal 16 20250202 SDIM0566 scaled](https://eynmoy2bh9v.exactdn.com/wp-content/uploads/2025/02/20250202-SDIM0566-scaled.jpg?strip=all&lossy=1&quality=70&ssl=1)
In addition, torabo-tsuki actually has a place on the board where a TRRS jack can be mounted, so a wired connection can be used for left-right communication.
To accommodate this, there is a hole for a cable connection, which shows the careful consideration that has gone into the design.
![Review of the exclusive 3DP case for torabo-tsuki(S)(M) now available from Kobo Hal 17 20250203 SDIM0576 scaled](https://eynmoy2bh9v.exactdn.com/wp-content/uploads/2025/02/20250203-SDIM0576-scaled.jpg?strip=all&lossy=1&quality=70&ssl=1)
![Review of the exclusive 3DP case for torabo-tsuki(S)(M) now available from Kobo Hal 5 Kawamura top R](https://greenwaves.jp/keys/wp-content/uploads/2022/07/Kawamura-top_R-150x150.jpeg)
This time, we had the new GREENKEYS logo specially printed on it.
I will use it carefully.
![Review of the exclusive 3DP case for torabo-tsuki(S)(M) now available from Kobo Hal 19 20250202 SDIM0565 scaled](https://eynmoy2bh9v.exactdn.com/wp-content/uploads/2025/02/20250202-SDIM0565-scaled.jpg?strip=all&lossy=1&quality=70&ssl=1)
![Review of the exclusive 3DP case for torabo-tsuki(S)(M) now available from Kobo Hal 20 20250202 SDIM0563 scaled](https://eynmoy2bh9v.exactdn.com/wp-content/uploads/2025/02/20250202-SDIM0563-scaled.jpg?strip=all&lossy=1&quality=70&ssl=1)
![Review of the exclusive 3DP case for torabo-tsuki(S)(M) now available from Kobo Hal 21 20250202 SDIM0564 scaled](https://eynmoy2bh9v.exactdn.com/wp-content/uploads/2025/02/20250202-SDIM0564-scaled.jpg?strip=all&lossy=1&quality=70&ssl=1)
summary
![Review of the exclusive 3DP case for torabo-tsuki(S)(M) now available from Kobo Hal 22 20250203 SDIM0579 scaled](https://eynmoy2bh9v.exactdn.com/wp-content/uploads/2025/02/20250203-SDIM0579-scaled.jpg?strip=all&lossy=1&quality=70&ssl=1)
These are some of the torabo-tsuki cases available from Kobo Hal.
The fact that there are many “fan products” that can update existing products like this is one of the attractions of the home-built keyboard community.
Currently, torabo-tsuki is “out of stock” and may be difficult to obtain.
Also, the case is currently “out of stock”, but if anyone wants one, why not contact us through the “Kobo Hal” inquiry form?