BQEYZ is a Chinese company that specialize in IEMs. I would like to thank BQEYZ for the review unit of Spring 2. At the moment, the Spring 2 can be purchased from Penon.


  • Driver Configuration: 1 13mm Coaxial Dynamic + 1 9 Layers Piezo Electric + 1 Balanced Armature
  • Frequency Response: 7Hz – 40kHz
  • Sensitivity: 110dB ± 3dB
  • Impedance: 32Ω ± 15%

Unboxing & Accessories

The Spring 2 comes in a black package with a protective cover which sports the brand logo and model name. There are specifications at the back of the protective cover. After opening the package, there are Spring 2, 2 pins 0.78mm cable, case, tips, cleaning tool, certification card and user guide.

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