The U&i Ui-7569 MASTER Series represents premium wired audio engineering with a large 14mm driver unit that delivers rich, immersive sound with exceptional bass response and crystal-clear highs. Featuring an impressive frequency response of 20Hz-20KHz and 320 ohms impedance, these Type-C earphones are optimized for high-quality digital audio output from modern smartphones and devices. The 115±3dB sensitivity ensures powerful, dynamic volume levels, while the built-in microphone with -42±3dB sensitivity captures your voice with professional clarity for calls and voice commands. The 1.2-meter cord provides practical reach for comfortable device placement, and the USB Type-C connector ensures direct digital audio connection without signal loss. The ergonomic design with premium materials ensures comfortable extended wear, making these earphones perfect for audiophiles, music enthusiasts, and professionals who demand superior sound quality from their mobile devices. Whether you're enjoying high-resolution music, participating in important video conferences, or gaming on the go, the MASTER Series delivers an exceptional audio experience.