For press, retailers, and business partners

Koe Stone

A wireless audio object. Hand-crafted in Tokyo. Limited to 100 units for the first production run. Currently in pilot with selected artists and cultural venues.

Positioning

Koe Stone is a palm-sized aluminum speaker designed around a single philosophy: one room should be a speaker, and eight rooms should be a symphony. A single Stone plays music alone. Up to eight Stones, placed anywhere in a home, form a self-synchronizing audio mesh with latency below two milliseconds between devices. There is no app, no account, no setup. The device has zero buttons. You touch it to begin.

Specifications

Form factor
Ø80 × 25 mm worry-stone / puck, superellipse profile
Weight
380 g (± 20 g)
Material
CNC 6061-T6 aluminum, unibody
Finish
Hairline + hard anodize, Space Gray
Audio driver
Tectonic BMR 40 mm (TEBM46C20N-4B)
Passive radiator
50 × 30 mm elliptical, bottom-firing
Codecs
LDAC, aptX Adaptive, LC3, SBC
Bluetooth
5.4 + BLE Audio LE (Auracast™)
Mesh sync
< 2 ms inter-device, 8-device maximum
SPL (single)
82 dB @ 1 m @ 1 W
SPL (8× mesh)
91 dB @ 1 m
Frequency response
100 Hz – 20 kHz (± 3 dB)
SoC
Nordic nRF5340 (dual-core Arm Cortex-M33)
Battery
3,000 mAh LiPo
Playback
8 hours continuous
Standby
30 days
Charging
Qi 5 W wireless (no cable, no port)
Interface
Capacitive top, accelerometer wake, NFC tag
Ingress protection
IPX4 (splash-resistant)
Certifications
Bluetooth SIG · 技適 (JP) · FCC · CE (pending for production units)

Price & Availability

$1,995 USD / ¥300,000 JPY per unit. Production limited to 100 units, numbered 001-100 with laser-engraved serials. First shipments planned for Summer 2026. Distribution will be limited to koe.live direct, plus selected boutique audio and music retailers. No mass-market channels.

Enabler Inc.

Enabler Inc. is a Tokyo-based design and engineering studio founded in 2023. Koe is the studio’s first hardware product. Previous work includes open-source infrastructure projects, distributed audio research, and the SOLUNA festival audio platform.

Press kit

Stone — Hero image Stone Mini — Hero image Pick — Hero image Pendant — Hero image Amp — Hero image Logo pack (coming soon) Press release PDF (coming soon)
Business inquiries

For press, retail distribution, artist endorsements, tour licensing, and cultural venue partnerships. Response typically within 48 hours, Tokyo business hours (JST).