Lenovo 4XD0K74703 In-ear Binaural Wired Black mobile headset

ThinkPad X1 In-Ear Headphones Premium personal audio designed to complement the X1 family of systems. These Dual Driver headphones deliver clarity and bass, creating a rich, emotional audio experience with your X1. Of course, these headphones add a fashionable touch to the X1 – great sound, amazing styling.Dual Driver
Balanced Armature driver delivers crystal clarity for high-range sound
Dynamic driver provides rich bass
In-ear Fit with Multiple Sized Ear Pieces
Inline Mic and Answer/Hang-up Control
Fits 3.5 mm with your notebook, workstation, tablet or smartphone