QKZ In-ear Wired Earphones Monitor Headphones HIFI Sound High-elastic Composite Diaphragm with Mic Line Control Professional-grade Wire Ergonomic Design Clear Communication Music Sport Headphones with Microphone Features: Custom Composite Diaphragm: It has twice the low-frequency energy of ordinary diaphragms, achieving ultra-high-definition resolution and transient performance, and easily interpreting strong rock tracks and vocals. Inclined In-ear Design: The elastic ear hook ensures a firm fit, and can maintain comfort and stability even when dancing vigorously on stage. High-clear MIC: Imported silicon wheat high-clear call, gold-plated pins effectively resist oxidation and rust stains, are not easy to wear, and long-lasting use. Strong Compatibility: 3.5mm standard interface, compatible with 98% of standard smartphones on the market. Professional-grade Wire: Standard 5N OFC oxygen-free copper professional-grade wire, reducing signal loss during transmission, and maintaining high-definition listening. Multiple Colors: 7 eye-catching colors, high-transparent and bright resin cavity, refracting charming colors with the change of light. Freely choose your favorite color. High-elastic Composite Diaphragm: It can control the tone more precisely, the sound field is more magnificent, and the sound details are more rich and three-dimensional. Specification: Optional colors: Black / White / Colourful / Blue / Green / Pink / Red Frequency response: 20HZ-20KHZ Impedance: 16Ω±10% Sensitivity: 96dB±3dB Interface type: 3.5mm straight angle socket Wire: screw stranded conductor Controlled by wire: Yes Wearing mode: ear winding Speaker diameter: 11.6MM Material: PC Cable length: 120cm±3cm Product weight: 15g Package size: 118*70*40mm Package weight: 76g Package list: 1* Earphone 3* Pairs of Earmuffs