What Audio Codecs do IQbuds2 MAX support? Follow IQbuds2 MAX supports SBC, AptX and Aptx-LL Audio CODECs. Related articles Are the batteries in IQbuds2 MAX replaceable? What is the expected operating life of the batteries in IQbuds2 MAX? Does the IQbuds2 MAX audio processing apply compression/limiting? Can IQbuds2 MAX be adjusted for specific frequencies? When making a phone call with the IQbuds2 MAX, is there a way to reduce the ambient noise for the person on the other end of the call?