UGREEN BT509 Bluetooth 6.0 AUX Receiver with LDAC

The UGREEN BT509 is a battery-powered Bluetooth receiver for sending audio to an AUX-equipped car stereo or other audio device. Its listed features include LDAC support, hands-free calls, dual-device connection and up to 17 hours of battery life, with important limits around codec compatibility and dual-phone playback.

At a glance

LDAC decoding is listed, but the page says LDAC is unavailable on iPhones. Android devices may need LDAC enabled in Bluetooth settings.
Two Bluetooth devices can connect, but only one can play audio at a time. The listing warns that competing playback can cause silence or stuttering.
The receiver is described as supporting hands-free calls and music playback through an AUX connection.
Battery life is claimed at 17 hours, and charging while in use is supported.

Price

$31.16Save 20%

Reference price: ~~$38.99~~

Price checked: 13 Nov 2026

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Pros and cons

Pros

Battery operation avoids relying solely on a powered USB connection, and charging during use is claimed.
Dual-device pairing can make switching between two phones convenient, even though simultaneous playback is not supported.
Hands-free calling and LDAC support are listed alongside AUX audio output.

Cons

Dual connection does not mean two devices can play audio simultaneously.
LDAC is not supported on iPhones, limiting that codec feature to compatible devices.

Technical specifications

19 specifications

Identity
Brand	UGREEN
Model	BT509

Connectivity and controls
Wireless connection listed	AUX
Bluetooth version	Bluetooth 6.0
Audio input	3.5mm AUX
Control method	Touch
Audio output mode	Stereo
Number of audio channels	2
Dual-device connection	Supports connecting two Bluetooth devices at the same time.

Audio and calling
Supported codec	LDAC
Hands-free calling	Hands-Free Calls
Microphone	Built-in microphones

Power and battery
Power configuration	Battery Powered
Claimed battery life	17 hours
Use while charging	Supports charging while using
Battery quantity and type	1 Lithium Metal batteries required. (included)
Lithium battery energy	1.11 Watt Hours

Compatibility and use
Compatible devices	Smartphone, Tablet, Laptop, Car Stereo System, Speaker, Camera
Supported applications	Spotify, Apple Music, YouTube, etc.

What to know before buying

Listing details to confirm

The listing calls the wireless connection “AUX” while also describing Bluetooth 6.0 wireless audio and a 3.5mm AUX input. Treat AUX as the wired audio connection and confirm the intended setup, as the connection-field wording is inconsistent. LDAC is stated to be unavailable on iPhones and may require manual activation on some Android phones. In dual-connection mode, only one phone can play audio at a time, and competing playback may cause stuttering. The listing claims 17 hours of battery life but gives no test conditions. It also says the device can power off after five minutes without a connection and outside the stated temperature range when not charging. Avoid use near strong magnets or magnetic accessories, as the listing warns this may cause malfunction.

Who is it for?

A good fit for

Drivers or home-audio users with an AUX input who want Bluetooth playback and hands-free calling.
Android users with LDAC-compatible phones seeking the listed higher-resolution codec option.
People who want to pair two phones and switch between them, rather than play from both at once.

Less suited to

iPhone users specifically seeking LDAC playback.
Buyers who need two phones to play audio simultaneously.
Setups without a suitable AUX input.

UGREEN BT509 Bluetooth 6.0 AUX Receiver with LDAC · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.4 / 5 · 2,028 ratings

5 stars71%71%
4 stars14%14%
3 stars6%6%
2 stars3%3%
1 star6%6%

Customer feedback describes setup and day-to-day use positively, with reported appreciation for battery life and automatic phone pairing. Sound quality and connectivity are mixed, including reports of loud prompts and repeated pairing, while controls draw criticism for requiring long presses to switch the device on or off. These concerns matter for a portable receiver that depends on Bluetooth pairing and a built-in battery. Overall ratings lean positive, but ratings alone do not establish how it will perform in a particular car or audio setup.

Positive themes

Customers report that setup is easy.
Customers report good battery life and value for money.
Some customers appreciate automatic phone pairing.

Negative themes

Some customers report overly loud prompts.
A customer reports repeated re-pairing issues.
Controls are criticised for requiring long button presses to turn the device on or off.

Mixed feedback

Sound quality receives mixed feedback.
Connectivity receives mixed feedback.

Frequently asked questions

Does the BT509 support LDAC with an iPhone?

No. The listing says LDAC is not available on iOS devices. It says some Android phones may require LDAC to be activated in Bluetooth settings.

Can two connected phones play audio at the same time?

No. The listing says two Bluetooth devices can connect, but only one can play audio at a time. If both try to play, the second may be silent and the first may stutter.

Can it be used while charging?

Yes. The listing says it supports charging while in use.

How long does the battery last?

The claimed battery life is 17 hours. The listing does not specify the conditions for that figure.