Losonnante

What Losonnante does

Losonnante (legal entity SAS Losonnante) is a Grenoble-based French hardware startup founded in 2021 that designs, manufactures, and installs bone conduction audio terminals for public spaces. The company's flagship product is a stationary kiosk — variants branded Whisper (dual-elbow), Vibe (single-elbow), and Harmony (head-based) — that transmits sound to listeners via vibrations traveling through the bones of the elbow and hand to the inner ear, eliminating the need for headphones, earbuds, or any wearable accessories. Devices are housed in Corian enclosures, IP65-rated for outdoor use, and are designed to be integrated into existing furniture or custom scenographic objects with invisible mounting systems.

The company sells primarily through a direct B2B enterprise motion targeting museums and cultural venues, tourist sites and heritage locations, festivals and events, urban planning and public-space projects, and amusement parks and leisure attractions. Pricing is quote-based and multi-year, not publicly disclosed; revenue is generated through hardware sales of audio stations and paid integration services for custom installations. The GTM mix includes a corporate website with brochure and trial-request flows, a LinkedIn presence, content marketing via blog posts and a newsletter, and curated industry trade show presence including ISE 2026 Innovation Park in Barcelona. Named reference customers include the Cité des sciences et de l'industrie, the Parc Zoologique de Paris, the Musée Château d'Annecy, the Musée archéologique Saint-Laurent de Grenoble, the Cité du design de Saint-Etienne, the Festival Yggdrasil, and the Département de l'Isère.

Losonnante has raised approximately 900,000 euros (November 2023) from Grenoble Angels, Samba, and Badge, supplemented by an ongoing equity crowdfunding campaign via Sowefund. The firm operates with a small team (1–10 employees), maintains research partnerships with CNRS, Linksium, Laboratoire PACT, and AAUcresson, and has received industry recognition including the Prix Sitem and Prix Salon Maires. No AI/ML capability and no recurring software revenue streams are disclosed; the business is fundamentally a niche hardware-and-integration play in the European cultural and public-sector experience economy.

Name

Losonnante

Legal name

SAS Losonnante

Website

https://losonnante.fr

Company type

Private

Founded year

2021

Operating status

Operating

Headcount range

1–10 employees

Short description

Losonnante is a Grenoble-based French startup that designs and installs bone conduction audio kiosks (Whisper, Vibe, Harmony) for museums, heritage sites, festivals, amusement parks, and urban public spaces, enabling audiences to hear audio without headphones or earbuds.

Ownership category

akta.pro rank

Product category

Bone Conduction Audio Hardware

NAICS

Audio and Video Equipment Manufacturing (334310)

SIC

Household Audio & Video Equipment (3651)

akta.pro primary industry

Sports & Fitness Audio (Open‑Ear, Bone Conduction, Neckband) (CRACANAD)

akta.pro secondary industry

Live Sound & Stage Equipment (PA Systems, Amplification, Monitoring) (MPAIAJAD)

Keywords

• Bone conduction audio
• Audio kiosks hardware
• Multisensory installations
• Museum audio systems
• Immersive audio terminals

Headquarters

HQ city

Grenoble

HQ country

France

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Personnel, Technology or R&D, Operations, Marketing or Sales

Revenue model

1. Hardware Sales (Audio Stations): Sale of bone conduction audio stations (Whisper, Vibe, Harmony product lines) with indoor, outdoor, and video variants. The company manufactures enclosures in Corian material in France.
2. Integration Services: Custom integration services for embedding devices into existing furniture or creating custom objects with invisible mounting systems for immersive experiences.
3. Solution Deployment: Commercial acceleration in audio solutions for tourist sites, events, and urban planning markets, suggesting project-based deployment revenue.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels6 records

Core offering

Losonnante manufactures and sells bone conduction audio kiosks (terminals) under the Whisper (2 elbows), Vibe (1 elbow), and Harmony (head) product lines in Indoor, Outdoor, and Video variants. The kiosks allow users to listen by placing their elbows on emitters and pressing hands over their ears, with no headphones or accessories required. The hardware is sold to public venues (museums, tourist sites, festivals, amusement parks, urban planning projects) along with custom integration services.

Product overview

Losonnante offers a bone conduction audio kiosk system — described as unique worldwide — that enables visitors to hear sound without headphones or accessories by placing elbows on emitters and hands over ears. The product portfolio consists of three main lines: the Whisper line (2 elbows) available in Indoor, Outdoor, and Video variants; the Vibe line (1 elbow) for compact installations; and the Harmony line (head-based) as an alternative form factor. Additionally, integration devices allow the technology to be embedded into custom furniture or bespoke installations. The system targets public venues including museums, tourist sites, amusement parks, festivals, cultural spaces, and urban planning projects. The hardware features a Corian facade, IP65-rated waterproofing, and is manufactured in France.

Differentiator

Problem solved

Functional benefit

Products and services

• Whisper Indoor Indoor bone conduction audio kiosk featuring dual elbow emitters that enables hands-free audio experiences for enclosed public spaces without headphones, earbuds, or any accessories.
• Whisper Outdoor Outdoor-rated bone conduction audio kiosk with IP65 waterproof electrical connection, Corian facade, and dual elbow emitters designed for exterior public installations such as tourist sites and heritage locations.
• Whisper Video Bone conduction audio system designed for video synchronization, combining the dual-elbow Whisper platform with visual content playback for synchronized audiovisual installations.
• Vibe Single-elbow bone conduction audio kiosk providing a compact, entry-level version of Losonnante's bone conduction technology for public spaces requiring a smaller footprint.
• Harmony Head-positioned bone conduction audio device offering an alternative form factor using head contact instead of elbow placement to deliver the same contactless listening experience.
• Integration Devices (Dispositifs d'intégrations) Custom integration devices allowing the bone conduction technology to be embedded into existing furniture or bespoke installations with invisible mounting systems, designed for scenographers and stage designers.
• Losonnante Services Companion services offered alongside the bone conduction audio kiosks to support deployment in museums, cultural venues, festivals, and urban planning projects.

Quantifiable outcome

• Inclusive audio accessibility - hearing-impaired individuals can experience audio through bone conduction when traditional headphones do not work

Named customers9 records

Segments6 records

Ideal customer profiles5 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Four partnerships are on record, tiered core and minor.

• CNRS (Centre National de la Recherche Scientifique)coreStrategic or Co-development PartnerNational scientific research center partnered with Losonnante, visible in partner logos on website.
• LinksiumcoreStrategic or Co-development PartnerGrenoble tech transfer office/research partnership supporting Losonnante's development.
• Laboratoire PACT (Pacte)coreStrategic or Co-development PartnerResearch laboratory partnership supporting acoustic and technological research.
• AAUcressonminorStrategic or Co-development PartnerPartner organization displayed in company logos.

Scale indicators1 record

Recent moves5 records

Expansion highlights5 records

Emerging players

• Holosonics: Holosonics makes the Audio Spotlight directional speaker system that creates localized sound bubbles in public spaces. Like Panphonics, it competes with Losonnante for contactless, focused audio deployments in museums, exhibits, and digital signage without requiring headphones.
• Panphonics: Panphonics manufactures directional sound speakers (sound showers) used in museums, retail, and public spaces as a contactless alternative to headphones. It represents a competing approach to localized audio delivery in public venues, partially overlapping with Losonnante's value proposition.

Broad incumbents

• Sennheiser: Sennheiser is a major audio equipment manufacturer whose guidePORT system serves museums and tour groups — directly overlapping with Losonnante's cultural venue use case. As a broad incumbent, Sennheiser offers a much wider portfolio but competes head-to-head in museum and tour-group audio.
• Biamp: Biamp provides professional AV solutions including audio distribution and venue sound systems for commercial and cultural spaces. As a broad incumbent, Biamp competes for the same venue installation budgets as Losonnante, with overlapping customers in museums and public spaces.
• Bose Professional: Bose Professional supplies audio systems for venues including museums, performing arts centers, and large public spaces. As a broad incumbent, Bose offers a much wider audio portfolio but competes for the same venue audio installation budgets that Losonnante targets.
• L-Acoustics: L-Acoustics is a premium professional audio company specializing in sound systems for large venues, festivals, and live events. While primarily a touring and concert brand, it competes with Losonnante for festival and event audio installation budgets.

Direct peers

• Shokz: Shokz (formerly AfterShokz) is the leading consumer bone conduction headphone brand, sharing Losonnante's underlying bone conduction technology stack. While Shokz targets consumer/sports applications and Losonnante targets public installations, both rely on the same core technology and adjacent manufacturing/IP base.
• Acoustiguide: Acoustiguide (now part of Antenna International) provides audio guide solutions for museums, cultural sites, and tourist attractions worldwide. It directly competes with Losonnante in the same museum and cultural venue use case with a much larger installed base and broader content/services portfolio.
• Listen Technologies: Listen Technologies provides assistive listening and audio guide solutions for venues, with a strong focus on hearing accessibility. It closely aligns with Losonnante's accessibility positioning for hearing-impaired users and shares many of the same cultural and public venue customers.
• Williams AV: Williams AV offers assistive listening systems (hearing loops, RF, and Wi-Fi-based audio distribution) targeting the same accessibility and venue audio use cases as Losonnante. There is strong customer overlap among venues seeking hearing-impaired-friendly audio experiences.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/losonnante/posts/?feedView=all

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds1 record

Investors3 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Losonnante