9. Which Bluetooth codecs are supported by BT11?

Bluetooth codec support: LDAC(990k is supported), aptX Adaptive, aptx Lossless,aptx,aptX HD, aptx Low Latency, SBC

Bluetooth version: 5.4

The reason for not supporting AAC and LHDC Bluetooth codes:

Because of some patent and license restrictions, AAC is not supported by BT11. There are only a few receiver devices that support LHDC, even FIIO doesn't have this kind of device. So we don't have the plan to support LHDC for BT11 currently.