Bluetooth 5.4 for a cable-free connection
The Redmi Buds 8 Pro use Bluetooth 5.4, one of the newer versions of the standard. You pair them once with a phone, tablet or computer, and after that they connect without any cable. The 20 Hz to 40 kHz range reaches beyond the usual upper limit of hearing; how much that matters depends on the audio file and the codec in use, and codecs are not listed in the manufacturer data.




