OQIMAX Bluetooth 5.3 2-in-1 Transmitter Receiver AUX audio adapter for TV, PC & headphones
Product description
The essentials
If you’ve got decent wired audio gear but want to use Bluetooth headphones, a Bluetooth AUX adapter can be a simple bridge between the two worlds. The OQIMAX Bluetooth 5.3 2-in-1 transmitter/receiver is built for exactly that: it can act as a Bluetooth receiver (wireless headphones with a TV/PC) or as a transmitter (turn wired speakers into wireless).
On paper, this is a practical “one box” solution for home and day-to-day use, and it’s even more travel-friendly thanks to a dual 3.5mm airplane adapter mentioned in the details. That said, it’s worth being realistic: you’re adapting an existing AUX setup, so if your sources don’t have an AUX output or your priority is ultra-low latency for gaming, this might feel a bit limited.
Where it fits in real life
The 2-in-1 design matters because it changes what you can plug it into. In receiver mode, you’d connect it to the AUX port of something like a TV or desktop computer, then pair your Bluetooth headphones. In transmitter mode, you’d do the reverse: connect the adapter to wired speakers and send the audio wirelessly.

A quick example: say you want to watch late-night shows without turning the room into a sound system. Plug the adapter into your TV’s AUX, switch it to RX, pair your headphones, and you can keep volume more personal. For a wired speaker setup in another room, swap to TX and let the adapter handle the Bluetooth side.
Key features that stand out
This model is positioned around Bluetooth 5.3 and a couple of convenience-focused ideas.
- Bluetooth 5.3 with quicker handling: the listing claims faster transmission speeds than earlier versions, aiming to reduce audio latency for smoother listening.
- RX/TX switching: you long-press the multifunction button to toggle between receiver and transmitter modes.
- Plug & play: the concept is straightforward—plug into the AUX port, power on, pair your headphones/target device.
- Dual connection in transmitter mode: the 3.5mm transmitter supports simultaneous connection to two devices, with two indicator lights showing each connection’s status.
- Auto-reconnect: it reconnects to the last paired device when powered back on.


Worth noting: the dual connection is described for the 3.5mm transmitter side, so if your main use is turning a TV into a Bluetooth headphone link, you’ll likely be sticking with receiver mode most of the time.

What you’ll notice in use
If you care about effortless setup, the main day-to-day benefit here is that it avoids complicated pairing steps—pairing is described as happening after you plug it into AUX and switch modes. The auto-reconnect feature can also reduce faff when you use it regularly.
Also, it supports multiple audio formats (the listing mentions MP3 and WAV). That’s useful when you’re sending audio from different sources, though real-world support still depends on the playback device and how it outputs over AUX.
Still, there’s a small limitation to keep in mind: any AUX-to-Bluetooth “relay” can introduce some delay, and the listing frames latency reduction as an improvement rather than a guarantee of zero delay.
Battery life and travel angle

The battery spec is one of the more reassuring parts of the description: the rechargeable battery charges in about 1 hour and is claimed to deliver up to 13 hours in RX mode and 16 hours in TX mode. There’s also a note that it supports charging while in use.
For air travel, the adapter includes a dual 3.5mm airplane adapter, and the description specifically frames this as a plug-and-play approach for in-flight entertainment. If you often fly with wired-only headphones, or if you want to keep cables to a minimum, this is the sort of accessory that can be genuinely handy.
Tech specs


- Type: Bluetooth transmitter/receiver (2-in-1) with dual connection
- Bluetooth version: 5.3
- Modes: RX (receiver) and TX (transmitter)
- Audio formats mentioned: MP3, WAV
- Playtime (claimed): up to 13 hours (RX mode), up to 16 hours (TX mode)
- Charging: rechargeable battery, charges in about 1 hour, charging while in use supported
- Indicators: two indicator lights for dual connections
- Included for flights (mentioned): dual 3.5mm airplane adapter
- Safety protections (mentioned): over-voltage, short-circuit, over-temperature
When it makes sense to buy it

A solid pick if you want to convert AUX audio into Bluetooth without replacing speakers, headphones, or your TV/PC setup. It particularly suits people who:
- have wired speakers or want to use Bluetooth headphones with a TV/PC that has an AUX output
- want the flexibility to use the same adapter at home and on flights
- prefer a simple RX/TX toggle and appreciate auto-reconnect
- might use two Bluetooth devices at once in transmitter mode
When you might want to skip it
It’s not the best choice if your source devices don’t offer an AUX (3.5mm) connection, because that’s the described plug-in route. You may also want to avoid it if you’re very sensitive to latency for competitive gaming, since the goal is “reduced” latency rather than claiming it’s perfect.
Also, dual connection only applies to the transmitter side, so if you specifically need two headphones for TV watching (receiver mode use), this may not line up with how you intend to use it.

Final verdict
Should you buy it? If your main goal is turning wired audio gear into a Bluetooth setup—either for everyday TV/PC listening or for easier in-flight headphone use—this OQIMAX model looks like a practical, feature-led adapter, especially with Bluetooth 5.3, the RX/TX switching, and the claimed battery life.


Just double-check that your audio sources use AUX, and be aware that latency is presented as improved rather than eliminated. If those points fit your use case, it’s likely worth considering.
Mini FAQ
Will it work with TV and headphones?

The listing describes receiver mode for using Bluetooth headphones with an AUX-connected device such as a TV or desktop computer, so it should suit that scenario as long as your TV has an AUX output.
Can it turn wired speakers into Bluetooth speakers?
Yes, the adapter can operate in transmitter mode, which is intended to send audio wirelessly to Bluetooth devices via a wired AUX speaker connection.
Does it reconnect automatically?
It’s described as auto-reconnecting to the last paired device when powered on.
How long does the battery last?
The claimed playtime is up to 13 hours in RX mode and up to 16 hours in TX mode, with a charge time of about 1 hour.
Is it suitable for flights?
The description says it includes a dual 3.5mm airplane adapter and is intended for quick connection to in-flight entertainment systems.
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