About this item HISTORIC COLLABORATION BETWEEN 7HZ AND CRINACLE REDEFINING BUDGET IEM EXCELLENCE: The collaboration between 7HZ and Crinacle resulted in the creation of the original Zero, a budget in-ear monitor (IEM) that made history for its outstanding performance in the market. Crinacle, a renowned audio reviewer with a significant impact on the industry, contributed his expertise in sound profiles to fine-tune the Zero. ENHANCED AUDIO EXPERIENCE WITH INNOVATIVE 10MM DYNAMIC DRIVER: Salnotes Zero:2 features a newly developed 10mm dual cavity dynamic driver with an upgraded PU+Metal composite diaphragm, resulting in improved tonal characteristics. The driver enhances responsiveness for faster diaphragm movement, delivering harder-hitting bass without compromising on crispness and precision in each note.