Softears CERBERUS 1DD+4BA+2EST Hybrid Drivers HiFi In-Ear Earphone

Features: The EST unit, Balanced Armature Unit and the Dynamic unit are responsible for high frequency, intermediate frequency and low frequency, respectively. Exquisite craftsmanship, handmade 1DD+4BA+2EST Sonion composite electrostatic drive unit Spec: Sensitivity: 104dB/100mV Impedance: 5Ω@1kHz Frequency response range: 10-80000Hz Distortion: THD≤1%, 1MD≤1%