Yes, the transmitter supports low latency as it uses the aptX Low Latency Codec, which ensures a low delay in audio transmission. The Bluetooth profiles AAC and SBC are also supported.

I couldn't get the device to work on my Sunrise TV Box and therefore returned it.

Unfortunately, we do not have any personal user experience with this product, but I would be happy to forward your question to the Community, perhaps a Community member will be able to help you 😊. Otherwise, I would recommend that you start a Community discussion about this so that more people become aware of it. You can start a discussion in the "Bluetooth Audio Adapter" section at the following link: https://www.galaxus.ch/de...

If there is an optical audio output, the transmitter is connected via Toslink cable, the 5V power supply is provided by a free USB connection on the TV. On my Sony TV, the Sound Bar, which is connected via ARC, must be switched off. This is the only way to ensure that the Toslink connection is working and that a headphone or loudspeaker sound can be played back via Bluetooth. Furthermore, the transmission protocols must correspond.