Product details:

Truthear has incorporated a New Generation DLP 3D printing technology and medical-grade resin shells in their line-up of in-ear monitors. Truthear has collaborated with HeyGears, a company founded in the year 2015. HeyGears is an innovative company that provides digital manufacturing solutions across various industries. They are focused on 3D printing, software development, materials, and big-data handling.SPECIFICATIONS
Configuration: 10mm+7.8mm Dynamic Driver
Diaphragm Material: PU + LCP composite diaphragm
THD: THD@1KHz≤1%
Sensitivity: 117.5dB/Vrms (@1KHz)
Impedance: 10Ω±15% (@1kHz)
Frequency Responce: 20Hz-39500Hz (IEC61094，Free Field)
Cable: Oxygen-free Silver-plated