Reference-grade · ANC 4.0

Silence,
shaped by sound.

Halcyon wraps you in stillness, then fills it with everything that matters. Engineered for audiophiles who hear the difference — and frequent flyers who feel it.

Pre-order now $549 ships March
40mm Beryllium Drivers60h BatteryAdaptive ANC 4.0Hi-Res WirelessHand-finished Aluminium 40mm Beryllium Drivers60h BatteryAdaptive ANC 4.0Hi-Res WirelessHand-finished Aluminium
Three signatures

Designed to disappear, built to last.

Every Halcyon detail earns its place. Nothing for show — everything for the listening.

Stillfield ANC 4.0

Eight microphones map the cabin around you and rebuild the quiet 48,000 times a second — taming jet roar without a hint of the cabin-pressure feeling.

−42 dB attenuation

Beryllium Voice

Featherlight 40mm beryllium-coated drivers move with startling precision — open highs, textured mids, and bass you feel in the chest, never the ear.

4 Hz – 40 kHz

Daylong Endurance

Sixty hours on a charge, with quick-charge giving five hours from a ten-minute top-up. Cross an ocean, land, and keep going without a cable in sight.

60h · USB-C quick charge
The fine print, refined

Specifications

Machined from a single billet of aerospace aluminium, cushioned in memory foam and lambskin. Halcyon is engineered to be worn for hours and kept for years.

🪶 Memory-foam lambskin ✈️ Folds flat for travel 🎚️ 10-band app EQ 🔌 Wired bypass mode
Driver40mm Beryllium
Frequency response4 Hz – 40 kHz
Noise cancellingAdaptive, −42 dB
Bluetooth5.4 · LDAC · aptX
Battery (ANC on)60 hours
ChargingUSB-C · 10m → 5h
Weight268 g
In the caseCable · Flight adapter
What listeners say

“For the first time, the engine vanished and the orchestra arrived. I forgot I was at 38,000 feet.”

Marisol Chen · Recording Engineer & 1M-mile flyer
Limited first run

Bring the quiet home.

Each pair is assembled to order and serial-numbered. Reserve yours from the inaugural production of 2,000.

$549 Free worldwide shipping · 30-night home trial · 2-year warranty
🔒 Secure checkout ↩️ Free returns 📦 Ships March 2025