With the Massdrop x Noble Kaiser 10 custom in-ear monitors, we’re bringing back Noble’s previous flagship—lauded by Forbes, The Verge, and InnerFidelity, and long rated Head-Fi users’ favorite IEM—for a more accessible price. Also known as the K10, this model uses the same tuning as the Noble Kaiser 10, with 10 Knowles balanced-armature drivers per ear. Each pair is assembled and matched by hand, and the precision-machined faceplate and shell can be customized with your choice of artwork or swirl designs. This CIEM is sensitive enough for use with smartphones, as well as portable digital audio players and amps.