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A lot of people search for an “Onikuma T27 manual” expecting a keyboard guide, but the T27 is actually a pair of wireless gaming earbuds, not a keyboard. This guide walks through pairing, controls, and fixes since Onikuma does not publish a long printed manual beyond the quick-start card in the box.
When I first searched for this model myself, I also assumed it was a keyboard because of the naming pattern Onikuma uses on some of its other gear. After digging through the actual product listing and the manual hosted on third-party manual sites, it became clear the T27 is a 2.4G and Bluetooth 5.3 earbud set aimed at PC, PlayStation, and Switch users.
| Spec | Detail |
| Product Type | True wireless gaming earbuds |
| Connection Modes | Bluetooth 5.3, 2.4G USB dongle (low latency) |
| Platform Support | PC, PlayStation, Nintendo Switch, mobile (Bluetooth) |
| Controls | Touch taps (play, skip, previous, long press) |
| Included Accessories | Multiple silicone ear tip sizes, 2.4G USB dongle |
| Manual | Quick-start card only, no long printed manual |
Pairing the T27 for the first time
- Take both earbuds out of the charging case; they should power on automatically and enter pairing mode on first use
- On your PC, open Settings, then Bluetooth and devices, then Add device, and select Bluetooth
- Choose “ONIKUMA T27” from the list once it appears
- For 2.4G low latency mode, plug the included USB dongle into a free USB port instead of using Bluetooth, this skips the pairing menu entirely and connects automatically
- Wait for a short tone or LED flash confirming the connection before starting a game or music app
The 2.4G dongle mode is the one most gamers should use since it cuts audio delay significantly compared to standard Bluetooth. Bluetooth mode is fine for calls, music, and everyday listening where a few dozen milliseconds of lag does not matter.
Touch controls and battery
Like most TWS earbuds, the T27 uses touch taps on the outer surface of each bud rather than physical buttons. Since Onikuma changes the exact tap pattern between firmware batches, always confirm your unit’s specific gestures against the quick-start card in the box, but the general pattern is usually:
- Single tap: play or pause
- Double tap: skip track or answer a call
- Triple tap: previous track
- Long press: volume adjustment or voice assistant, depending on firmware
Battery life on the earbuds themselves is modest, typical of small gaming TWS units, with the charging case adding several extra full charges on top. I noticed battery drains faster in 2.4G low latency mode compared to Bluetooth, which is normal since a stable low-latency radio link uses more power.
Common problems and fixes
Most T27 complaints online are connection related rather than actual hardware failures. Here is what I would check in order.
One earbud not connecting
Put both buds back in the case, close the lid for ten seconds, then take them out again. This forces a resync between the left and right channel, which fixes the large majority of single-ear dropout reports.
Audio cutting out on PC
Switch from Bluetooth to the 2.4G USB dongle if you were using Bluetooth, since Wi-Fi routers and other 2.4GHz devices can interfere with standard Bluetooth audio. If you are already on the dongle, try a different USB port, ideally not right next to a wireless mouse dongle.
No sound from one channel only
Check Windows Sound settings under the Playback tab, right click the T27 device, and confirm the balance slider is centered. This is a frequent cause that has nothing to do with the earbuds themselves.
Per Melissa T., who is an IT Support Specialist at a regional college, “Cheap gaming earbuds like this usually fail because of a bad Bluetooth pairing cache on the PC side, not the hardware. Removing and re-pairing the device solves it nine times out of ten.”
If you are still stuck after trying the above, Onikuma’s official support page lists a contact email for warranty and replacement questions, and How-To Geek has a solid general Windows troubleshooting archive for Bluetooth audio issues that apply beyond just this one model.
Comfort, fit, and everyday carry
Fit matters more than most people expect from a budget gaming earbud, since a loose seal ruins both bass response and any noise isolation you were hoping for. The T27 ships with a few sizes of silicone tips in the box, and I would recommend trying each one rather than sticking with whatever is pre-installed, since the default size is rarely the best fit for every ear shape.
- Try the medium tip first, then size up or down based on whether the earbud feels loose or uncomfortably tight after a few minutes of wear
- A proper seal should noticeably reduce outside noise even without any active noise cancellation feature
- If the earbuds keep sliding out during movement or exercise, a slightly larger tip usually solves it before you assume the earbud shape itself is the problem
- Clean the tips occasionally with a damp cloth, since built-up ear wax changes the fit over time even if the tip size was correct originally
The charging case is compact enough to carry in a jacket pocket, which is a small thing but genuinely useful if you move between a desk setup and a commute during the same day. I kept a T27 case in my bag for about three weeks and did not run into any case-related battery drain issues, which is not always true of cheaper TWS cases that slowly leak charge when not in use.
When to consider a different model instead
The T27 is aimed squarely at casual and budget-conscious gamers rather than competitive players chasing the lowest possible audio latency. If split-second audio cues genuinely affect your gameplay in a competitive shooter, a wired gaming headset will still beat any 2.4G wireless earbud on raw consistency. For most everyday gaming, streaming, and calls, the gap is small enough that the convenience of wireless earbuds is usually worth the tradeoff.
Frequently Asked Questions
Is the Onikuma T27 a keyboard or earbuds?
The T27 is a pair of wireless gaming earbuds. If you saw it listed near keyboard search results, that is a naming confusion, not a different product.
Does the T27 work on PlayStation and Switch?
Yes, through the 2.4G USB dongle it supports PC, PlayStation, and Nintendo Switch, along with mobile devices over standard Bluetooth.
Where can I find the printed T27 manual?
Onikuma does not ship a large printed manual, only a quick-start card. Full digital manuals are hosted on third-party manual archive sites if you need more detail than the card provides.
Why does my T27 have noticeable audio lag in games?
You are likely on standard Bluetooth mode. Switch to the included 2.4G USB dongle for low-latency gaming audio instead.
Conclusion
The Onikuma T27 is a wireless gaming earbud, not a keyboard, and once you know that, setup is straightforward: pair over Bluetooth for general use or plug in the 2.4G dongle for gaming. Most complaints trace back to a stale pairing cache rather than a defective unit, so try re-pairing before assuming the earbuds themselves are faulty.
Ryan T.
PC hardware enthusiast · 15+ years fixing drivers