ZERO:BLUE2 features a dual-cavity internal magnetic circuit dynamic drivers design, incorporating a 10mm solid silica gel suspension composite liquid crystal dome with an N52 magnet and a 7.8mm upgraded polyurethane suspension liquid crystal dome with an N55 magnet. Utilizing a DLP-3D printing process for the cavity and a silicone capping technique, these methods are typically reserved for high-end multi-driver products and custom earphones. ZERO:BLUE2 is equipped with a newly designed copper silver-plated coaxial cable. Upgraded Configuration Enhanced Efficiency： Like its predecessors in the ZERO series, the ZERO:BLUE2 features dual dynamic drivers. However, the structure of the 7.8mm dynamic driver has been modified, focusing on mid and high frequencies. This driver utilizes a mature internal magnetic circuit structure, incorporating flexible polyurethane material for suspension and an LCP (liquid crystal polymer) dome diaphragm. Despite these similarities, the internal design is quite different from earlier models. Further Upgraded Stock Cable Mic Cable [Optional]： The ZERO:BLUE2 incorporates a 0.78mm 2-pin design and comes with an upgraded two-strand 294-core high-quality copper and silver-plated coaxial cable. The number of internal wires has been increased further, enhancing sound performance and providing a tangle-free experience. Moreover, it offers a microphone option that includes not only the two-strand high-quality copper and silver-plated coaxial cable with a 3.5mm single-ended 0.78mm 2-pin connection, but also features an oxygen-free copper mic cable of exceptional quality (same as the mic cable used in the GATE). This makes the ZERO:BLUE2 not just an excellent companion for music and monitoring, but also a reliable assistant for calls and gaming. Style 3.5mm Model Name Zero:BLUE2 Item Weight 8.4 ounces Manufacturer TRUTHEAR Noise Control Sound Isolation Control Method Remote Earpiece Shape rounded tips Frequency Range 20Hz - 41kHz Headphones Jack 3.5 mm Jack Number of Items 1 Audio Driver Type Dynamic Driver Item model number Zero:BLUE2 Compatible Devices Laptops, Desktops, Gaming Consoles, Telephones, Smart Speaker, Television, Cellphones Package Dimensions 6.3 x 4.02 x 1.93 inches Included Components Cable, Eartip Age Range Description Adult Connectivity Technology Wired