MOONDROP QUARKS 6mm Micro Dynamic Driver Wired IEM In-Ear Monitor Headphones with Mic

Closed front cavity dynamic driver in-ear earphone Frequency response range: 4 - 43kHz (IEC61094, Free Field) Effective frequency response: 20 - 20kHz (IEC60318-4, -3dB) Sensitivity: 116dB/Vrms @1kHz Impedance: 16Ω ±15% @1kHz THD: <1%@1kHz Transducer: specialized high-performance 6mm micro dynamic driver Material of Cavity: PC