This is a set of KZ-PRX with mic + QKZ Q7-MAX (detachable cable with boom mic). It has only been used once. These are famous wired earphones. Fourth-generation planar magnetic high-end in-ear canal earphones Brand: KZ Model Name: PRX Driver Configuration: 1PD Connector: QDC-like (KZ 0.75mm) Impedance: 15Ω Sensitivity: 94dB±3dB Frequency Response: 20Hz-40kHz Release Date: October 2024 #Halloween on Mercari