1 / 7UGREEN Bluetooth 5.2 2-in-1 AUX Transmitter and Receiver
The UGREEN Bluetooth AUX transmitter and receiver is a rechargeable 2-in-1 adapter for sending audio from a wired source to Bluetooth headphones or receiving audio for a wired AUX system. The listing claims up to 28 hours in transmit mode and 20 hours in receive mode, with dual-device connection and a stated 10-metre range.
At a glance
- Transmit and receive modes are claimed for use with Bluetooth headphones, TVs, cars and speakers with AUX connections.
- Battery-life claims differ by mode: up to 28 hours transmitting and 20 hours receiving.
- The listing describes dual pairing and a 10-metre transmission range.
- Customer feedback includes reports of simple setup and good battery life, alongside mixed compatibility experiences and latency concerns.
Reference price: €37.99
Price checked: 13 Nov 2026
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Pros and cons
Pros
- Two modes can cover sending audio from a wired source and receiving audio for an AUX system.
- The claimed mode-specific battery life may suit longer trips without frequent recharging.
- The listing describes dual-device connection and plug-and-play installation.
Cons
- Reported audio latency may be a drawback for video where sound and picture synchronisation matters.
Technical specifications
24 specifications| Brand | UGREEN |
|---|---|
| Model | Bluetooth 5.2 Transmisor y Receptor para Coche TV Avión, 2 en 1 Inalámbrico 3.5mm Aux Bluetooth Adapter |
| Wireless connection listed | AUX |
|---|---|
| Control methods listed | Voice |
| Bluetooth version stated in listing title | Bluetooth 5.2 |
| Other Bluetooth version claim | Bluetooth 5.3, AptX |
| Connection feature | Bluetooth 5.2, dual pairing, long-lasting battery |
| Paired-device claim | Stay connected to two devices |
| Transmission range claim | 10m (32 ft) |
| Installation | plug-and-play |
| Compatible devices | Mobile Phone, Tablet, Laptop, Television, Car Stereo System, Headphones |
| Audio codecs listed | AAC, SBC |
| Power configuration | Battery Powered |
|---|---|
| Battery type | 2.5 gram lithium-ion battery with 1.11 watt-hours energy content |
| Battery capacity | 300 Milliampere Hour (mAh) |
| Battery quantity | 1 Lithium Metal batteries required. (included) |
| Rechargeable battery included | Yes |
| Charge time claim | 2 Hours |
| Battery life in transmit mode | 28 hours of battery life in transmit mode |
| Battery life in receive mode | 20 hours in receive mode |
| Weight listed | 18.2 Grams |
|---|---|
| Dimensions | 15L x 10W x 2.2H centimetres |
| Material listed | Plastic |
|---|---|
| Colour | Silver-green |
What to know before buying
Listing details to confirm
Bluetooth version claims conflict: the title and several feature claims say 5.2, while another specification says 5.3. The listing also gives different codec information, with AAC and SBC in one field and AptX in another. Confirm the selected version and codec support if they matter. Battery life is stated separately for transmit and receive modes, not as one universal figure. Customer feedback reports mixed compatibility, so check that the intended source and receiving device match the required transmit or receive mode.
Who is it for?
A good fit for
- Travellers wanting to connect Bluetooth headphones to a wired audio output, subject to the source having a suitable AUX connection.
- Drivers or home-audio users looking to add Bluetooth audio to a compatible AUX system.
- Buyers who want one rechargeable adapter with both transmit and receive modes.
Less suited to
- Buyers who need confirmed codec or Bluetooth-version support without checking the conflicting listing details.
- Video viewers who are sensitive to audio delay, given reported latency concerns.
- Anyone whose equipment lacks a compatible AUX audio connection.

Customer reviews on Amazon
- 5 stars
62% 62% - 4 stars
16% 16% - 3 stars
8% 8% - 2 stars
4% 4% - 1 star
10% 10%
Customer feedback highlights perceived sound quality, battery life, durability and easy setup. Compatibility and value for money are described as mixed, and latency is a reported concern. For longer trips, positive battery-life reports are relevant to the listing's separate 28-hour transmit and 20-hour receive claims, but those claims do not establish compatibility with a particular setup or resolve the reported delay issue.
Positive themes
- Customers report good sound quality and battery life, and some praise the simple setup and durability.
Negative themes
- Some customers report connection failures, and latency is a concern in the feedback.
Mixed feedback
- Compatibility and value for money receive mixed feedback.
Frequently asked questions
Can this adapter transmit and receive Bluetooth audio?
The listing describes both modes. Transmit mode sends audio from a wired source to Bluetooth headphones, while receive mode sends Bluetooth audio to a connected AUX audio system.
How long does the battery last?
The listing claims up to 28 hours in transmit mode and 20 hours in receive mode. These are mode-specific claims, not a single shared runtime.
Which Bluetooth version does it use?
The listing is inconsistent. The title and feature text specify Bluetooth 5.2, while a separate specification lists Bluetooth 5.3 and AptX. Confirm the version and codec support for the selected listing.
Will it work with my TV, car stereo or headphones?
The listing names TVs, car stereos and headphones as compatible device types, but the setup depends on using the appropriate transmit or receive mode and a suitable AUX connection. Customer feedback on compatibility is mixed.

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