Our take

 

You want deep, physical sub-bass alongside crisp detail, air and a wide sense of space.

 

This is for you if: You love detail, air and a wide sense of space, and you're driving it from a phone or a basic dongle rather than a stack of gear.

Look at other IEMs if: You want thick mid-bass warmth or punch, or you're sensitive to treble on bright tracks. The sub-bass goes deep, but the mid-bass stays lean and the top end is crisp, not soft.

How it's designed

  • Build: Light 3D-printed resin with a deep-blue Ao-Bing faceplate (three collectible cards in the box).
  • Comfort: About 5.6 g and comfortable for long listens.
  • The specs:
    Drivers: 1DD + 4BA + 2 micro-planar
    Impedance: 37 Ω
    Sensitivity: 107 dB/mW

What we hear

  • Bass: Clean, defined and well-controlled — present without bloat.
  • Instruments: Fast and crisp with good snap; notes are tight and well-placed.
  • Vocals: Natural and clear.
  • Treble: Airy, crisp, and energetic but not harsh.
  • Details: A strength — wide stage, clear placement, lots of detail for the price.