Features: 1. In-ear monitors are born from a and intelligence—shaped by the same forces that drive structural optimization and mechanical efficiency to deliver uncompromising sound that is clear, precise, and intentional. 2. Five- machined aircraft- aluminum enables of in-ear monitors. It superior strength, optimized chambers, advanced treatments, and ensures consistently high- production. 3. -high-, extremely advanced 3D resin printing technology can achieve nanoscale fine printing, and the structure of the in-ear monitoring shell has also been ergonomically optimized. It features a complex internal structure, extreme stability, and rapid development speed - ideal for general-purpose headphones and - . 4. Includes 6 types of earplugs (bowl/ for enhanced bass/), premium carrying case, and plug - for all your needs. A customized high-end experience, ideal as a gift for and family. 5. Quatio IEMs come with a 4.4mm balanced plug and a 3.5mm single-ended plug, both of which use high-purity silver-plated cables (4 cores/98 wires each) for lossless transmission. You can freely according to your device, it can be used as a gaming or as a high-end in-ear headphone. Specifications: Driver configuration: 10mm diaphragm dynamic driver Sensitivity: 111dB±3dB 1KHz Impedance: 20Ω±20% 1ΚΗz Frequency : 20Hz-20ΚΗz Connection wire: 7x7x0.06 OFC Wire length: 1.2m ± 5% Socket : 2 pin 0.78 Package Includes: Headphones*1 note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.