okcsc ELONGZ Earphones 0.78mm 2pin Wired Earphones Canal Type Dynamic Driver Equipped Heavy Bass 3.5mm Detachable Cable High Isolation Gaming Earphones Compatible with PC/Smartphone "Dragon" ・Fourth Generation Driver, HIFI Sound Quality: Equipped with the fourth generation 10mm double magnetic driver G1. The diaphragm uses PET titanium-coated material, and Tesla technology, N52 strong magnets, and nano-level coated diaphragms work together to reproduce music signals with high precision. Rated impedance is 18Ω, rated power is 5mW, and maximum power is 10mW. The sensitivity at 1KHz reaches 106dB, achieving highly efficient audio conversion. The balance of the three frequency bands is excellent; the low frequencies are powerful and clear due to the driver's characteristics, the vocals are reproduced clearly with low distortion (<0.5% at 1KHz), and the high frequencies are bright and not harsh. It provides a professional HIFI sound experience for pop music lovers, precisely reproducing the details of the music and making the melody rich and three-dimensional. ・Skin-Friendly Material, Comfortable Fit: The earphone panels are made of high-quality, skin-friendly resin material, which fits the ear canal easily and feels good. The human engineering design provides a lightweight and secure fit, reducing pressure even during long-term use, offering a comfortable experience from listening to music during commutes to immersing yourself in the world of music. ・Replaceable Cable Design, Expanded Playability: Compatible with 0.78mm 2-pin detachable cable replacement. Combined with a single-crystal copper upgrade cable, it prevents noise with its low-loss characteristics and optimizes signal transmission, improving the purity and resolution of the sound quality. Users can replace the cable according to their needs and explore various sound styles, enhancing the playability and expandability of the earphones, and adapting to many audio devices. Matching the wide frequency range of the earphones, 10 - 28KHz, after replacing the cable, the extension of the high frequencies and the depth of the low frequencies are more fully brought out, and the sound quality can be diversely upgraded by adjusting the cable, meeting the refined needs of advanced music lovers for various music styles and equipment compatibility. I used it for about 5 minutes. I stopped using it because I don't like wired cables. Immediate purchase is OK.