KZ ZSN Pro X metal in-ear earbuds with a 10 mm driver and hybrid vocal technology. Wired 3.5 mm connection with L-shaped plug, single-driver design, sensitivity about 112 dB and impedance around 25 Ω. Includes a built-in microphone and control button, not wireless and without active noise cancellation. Frequency response from 7 Hz to 40 000 Hz. Style suited for Hi‑Fi, gaming and sport use.