L3LAB / DESIGN NOTES
Device design: neck patch & sound-light hub
01Two devices, rebuilt
The 24 Oct 2026 package rebuilds both devices from new reference images: a pill-shaped posterior-neck patch and a desk-side sound & light hub. It does not reuse the earlier four-lobed ARC model.
02The patch
58 × 26 × 6.5 mm. A frosted curved shell, silver edge and low-glow status light; on the back, sensing contacts, magnetic charging contacts and a replaceable adhesive layer.
03The hub
About 150 × 150 × 45 mm. A clear glass lid with touch for colour, mode and brightness; a front touch strip for volume, play/pause and stop; a side speaker and a multicolour perimeter light.
04Fourteen layers inside
The hub is built from 14 groups: glass cover, touch film, diffuser and seal, light board, mounting frame, fasteners, main board, power/audio board, hollow enclosure, speaker chamber, front touch module, USB-C board, base plate and feet.
Source material
Sona Field device design documents, 24 Oct 2026.