Small gift for the first 20 customers.
The first 20 customers can get a softears keychain（color random）
The EST unit, Balanced Armature Unit and the Dynamic unit are responsible for high frequency, intermediate frequency and low frequency, respectively.
Exquisite craftsmanship, handmade
Sonion composite electrostatic drive unit
Frequency response range: 10-80000Hz
Distortion: THD≤1%, 1MD≤1%
Socket: 0.78mm 2pin