The QCC51XX series of QUALCOMM is designed to help manufacturers develop a new generation of compact, low power Bluetooth audio, feature-rich wire-free earbuds, hearables and headsets.
QCC5124 architecture is engineered for high performance with low power consumption. Power consumption can be reduced by up to 65 percent compared to the previous technology, for both voice calls and music streaming and devices are optimized to support longer audio playback in virtually all operating modes. The flexibility provided by the programmable applications processor and audio DSPs helps manufacturers to easily differentiate products with new features without extended development cycles.
Qualcomm QCC5125 supports Bluetooth 5.1, supports Apt-X Adaptive dynamic low-latency mode, and is excellent in signal transmission, sound quality, and noise reduction.
Here is a comparation between QCC5124 and QCC5125:
