EDX in-ear headphones by KZ with a single dynamic 10 mm driver. Frequency response 10–20,000 Hz, sensitivity around 112 dB and impedance about 23 Ω. Wired design with 3.5 mm connector (L-shaped plug), ear-hook style, built-in microphone and control button. Designed for HiFi listening, monitoring and sports use; not waterproof.