SIAX Fold Buds — the foldable earbud
Fold. Snap. Go.
A full-size acoustic chamber that folds to half its footprint. −42dB of quiet, 38 hours of play, 4.1 grams a bud.
38hbattery−42dBANC4.1gper budIPX5rated Free shipping worldwide
2-year hinge warranty
30-day quiet returns
4.9★ average from 2,847 verified reviews
“The hinge feels like it was machined, not molded.” — Audio Quarterly
The pocket problem
Your earbuds vs Fold Buds.
Everyone else
- — Bulky cases that bulge every pocket
- — Hinges that loosen within a year
- — ANC that quits on a crowded train
- — Charging anxiety by mid-afternoon
SIAX Fold Buds
- ✓ Folds to 26mm — coin-pocket flat
- ✓ Hinge rated for 10,000 folds
- ✓ Adaptive ANC down to −42dB
- ✓ 38 hours total with the case
Three finishes. One idea.
Pick your fold.
Engineering, framed
Everything bends. Nothing breaks.
The hinge
Anodized cobalt, machined to 8 microns.
−42dB
quiet
Adaptive ANC
−42dB of hush, tuned per ear 200 times a second.
38h
total
Battery
8h per bud, 30h more in the folding case.
4.1g
per bud
Featherweight
Lighter than a sheet of A4 paper. You’ll forget the fit.
IPX5
rated
Sealed
Rain, sweat, dawn runs. Rated and ready.
Showcase — the fold
Ten thousand folds. One perfect click.
We cycle-tested the hinge until the lab ran out of interns. At fold 10,000 the click measured within 0.2 decibels of fold one. That sound is the whole brand.
The snap
guaranteed
Three moves
Unfold. Wear. Snap shut.
1
Unfold
Flick the case open. The buds rise on the hinge, paired before your hand reaches your ear.
2
Wear
Memory-silicone tips seal in two seconds. ANC maps the room and pulls the world down 42 decibels.
3
Snap shut
Fold flat, drop in any pocket. The case tops itself up on any wireless pad.
−42dBon the 7:42 4.1gforget they’re in Showcase — the quiet
The commute, muted.
Adaptive ANC listens to the carriage, the wind, the crowd — and removes exactly that much world. What’s left is your record, at the volume it was mastered.
Hear it yourselfIn the wild
Small object. Big life.
Full specification
Numbers that hold up.
- Driver
- 11mm graphene, dual-chamber
- Noise cancelling
- Adaptive ANC, −42dB max
- Battery
- 8h buds + 30h case · 10 min = 3h
- Weight
- 4.1g per bud · 38g case
- Folded footprint
- 26 × 48 × 54 mm
- Hinge life
- 10,000 folds, lab-certified
- Rating
- IPX5 sweat & rain
- Connectivity
- Bluetooth 5.4 · multipoint · LE Audio
Verified owners
The click converts.
★★★★★
“I bought them for the hinge gimmick. I kept them for the sound — the ANC on my red-eye was genuinely startling.”
Mara K.
Frequent flyer
★★★★★
“Four months of daily folding and the snap is identical to day one. It’s the fidget toy that plays music.”
Deniz A.
Product designer
★★★★★
“At 4.1 grams they disappear. I ran a half-marathon in the rain and forgot which pocket they were in after.”
Tom R.
Runner, IPX5 believer
Questions
Asked, answered.
It’s rated for 10,000 folds — that’s five folds a day for five and a half years. If yours loosens inside the 2-year warranty, we replace it.
Folded, the case is 26mm thick — flatter than most car keys. It fits the coin pocket of slim jeans.
Yes. Either bud runs solo with full ANC and calls, and the case charges whichever is docked.
Every box ships with three tip sizes, and the $19 FlexFit kit adds memory-silicone options. Still not right? 30-day returns, no questions.
Free shipping · 2-year warranty · 30-day returns
Yours. Ships tomorrow.
Fold Buds
$149 · ships tomorrow