The Shure AONIC 4 builds off from the high standards of its predecessor, offering professional-level audio quality and is comfortable for all-day use. Unlike previous models, the AONIC 4's feature hybrid dual-driver design that includes a balanced-armature driver and one dynamic driver. This system is able to produce an even higher level of audio-quality that's been specially tuned for dynamic bass and extended high-frequencies. In addition, these earbuds see up to an impressive 37 dB of sound isolation which can be effectively utilised by choosing the best fitting earbuds from the multiple ear tips that are included in the kit. As well as improving sound isolation, finding the right ear tip will also improve the already sleek, low-profile and comfortable design. Adding to the flexibility of these earbuds, they come with a detachable 3.5mm RMCE-UNI cable with inline mic and control for both iOS and Android devices.