Dual-driver Earphones with Onboard Isolation The Shure Aonic 4 Sound Isolating Earphones combine excellent sound quality with intuitive functionality to create a listening experience unlike anything else in its price range. These 2-driver earphones have a dynamic driver and a balanced armature driver in each ear. This hybrid driver configuration enables a deep, robust bass response with an incredibly detailed high end. The Aonic 4s have an in-line remote and microphone easy volume tweaks and conducting phone calls. The sound quality isn't what pushes the Aonic 4s to the top of the heap, though; it's Shure's Sound Isolating technology that gives you up to 37dB of blissful isolation. Finally, the comfortable low-profile design and precisely angled nozzle make for a supremely comfortable listening experience. Whether you're using them on a crowded commute or at home when you need some time to yourself, the Shure Aonic 4 Sound Isolating earphones will