What Whisper does

Whisper (legal entity Justlisten Technology LTD, headquartered in St. Julian's, Malta) designs, manufactures, and distributes proprietary radio-frequency audio communication systems used as guided-tour, training, and assistive-listening devices. Founded in Rome in 1999 by Massimiliano Bisceglia, the company claims to have invented the world's first radio guide system and operates a vertically integrated model covering R&D (Whisper LAB), product engineering, manufacturing oversight, and global distribution. Its current hardware portfolio spans unidirectional systems (Whisper Mini at 2.4 GHz / 23g receiver; Whisper Prime Plus at 863-865 MHz with up to 70h battery), the two-way WS2 Bidirectional system (702-902 MHz, up to 500m, conference/multi-group modes), and the Mini PLUS KIT — a UV-C sterilization and magnetic-charging case for up to 54 receivers. The newly introduced Whisper X, Y, and T product family extends the range into a compact form factor, extended-battery operation, and instant multilingual translation.

The company monetizes through three concurrent streams: (1) one-time hardware sales of transmitters, receivers, and accessories via its own multilingual e-commerce storefront and B2B channels; (2) recurring equipment rental on daily, tour-length, and long-term bases, supported by a 15+ office logistics network spanning Italy, France, Greece, the USA (Miami), Israel, Morocco, Portugal, the Czech Republic, and the Caribbean (Antigua); and (3) Whisper LAB bespoke/contract-manufacturing services for customized radio communication solutions. End customers include tour operators, museums (e.g., Vatican Museums), cruise shore-excursion providers, sports federations and instructors (e.g., Longines Global Champions Tour, paraclimbing champion Simone Salvagnin), corporate event organizers, and schools/universities. Whisper holds ISO 9001:2015, ISO 14001:2015, and ISO 45001:2018 certifications and is founder-owned, with no external funding rounds disclosed.

Name

Whisper

Legal name

Justlisten Technology LTD

Website

https://whisper-system.net

Company type

Private

Founded year

1999

Operating status

Operating

Headcount range

51–100 employees

Short description

Whisper is a Malta-headquartered, founder-owned manufacturer and global renter of proprietary radio-frequency audio guide systems, serving tour operators, museums, sports coaches, and event organizers across 15+ countries with hardware sales, recurring rentals, and bespoke R&D.

Ownership category

akta.pro rank

Product category

Wireless Audio Communication Equipment

NAICS

Audio and Video Equipment Manufacturing (334310), Telecommunications (517)

SIC

Communications Equipment, Nec (3669), Household Audio & Video Equipment (3651), Retail-Radio, Tv & Consumer Electronics Stores (5731)

akta.pro primary industry

Microphones, Headsets & Audio Input Devices (HDACAFAH)

akta.pro secondary industry

Headphones & Personal Audio Retail (Earbuds, ANC, DACs) (CRACAEAG)

Keywords

• Wireless radio guides
• Group audio communication
• Tour guide equipment
• Bidirectional radio systems
• Rental audio headsets

Headquarters

HQ city

Valletta

HQ country

Malta

HQ region

Europe

Offices15 records

Markets served

GTM type

B2B and B2C

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Hardware Sales – Radio Guide Systems: Sale of transmitters, receivers, and accessories (earbuds, headphones, microphones, chargers) to end customers including tour operators, museums, sports organizations, schools, and individual buyers. Products include Whisper Mini, Mini PLUS, Prime Plus, and WS2 systems.
2. Equipment Rental: Short-term (daily), medium-term (tour, 3-30 days), and long-term (30+ days) rental of radio guide systems for guided tours, cruise shore excursions, business events, conferences, and educational programs. Kits delivered ready-to-use with customer support throughout rental period.
3. Customized/Tailor-Made Products: Whisper LAB develops and manufactures bespoke radio communication solutions for specific client requirements, from niche industrial applications to branded products, with full in-house R&D and production capability.

Pricing tiers

Go-to-market motion3 records

Distribution channels5 records

Marketing channels5 records

Core offering

Whisper designs, manufactures, and globally distributes proprietary wireless radio guide (radioguide) systems that enable clear, hands-free audio communication between a guide/instructor and a group of listeners over distances of 150–500m without phone networks or internet. The portfolio includes unidirectional systems (Whisper Mini, Whisper Prime Plus), a bidirectional WS2 system for real-time feedback, a premium Mini PLUS KIT with UV-C sterilization charging case, and a next-generation Whisper X/Y/T family. Products are sold and rented to tour operators, museums, sports coaches, schools, businesses, and individual buyers across 15+ countries.

Product overview

Whisper is a wireless audio communication company founded in 1999, operating as a platform of radio guide systems sold and rented globally. The product portfolio spans unidirectional radio guides (Whisper Mini, Whisper Prime Plus), bidirectional two-way communication systems (WS2 Bidirectional), and an all-in-one premium kit (Mini PLUS KIT with UV sterilization charging case). The Mini PLUS KIT is the flagship system, combining receiver and transmitter hardware with a proprietary carbon-fiber charging case featuring UV-C sterilization and magnetic charging for up to 54 devices. The newer Whisper X, Y, and T models represent the next-generation product family, with Whisper X focused on compactness, Whisper Y on extended battery life and fast charging, and Whisper T on instant multilingual translation. Products serve four primary verticals: Tourism (museums, walking tours, cruises), Sport (skiing, sailing, riding), Business (conferences, factory tours), and Education (schools, universities). Products are sold and rented worldwide through a network of logistics centers across Italy, France, Greece, USA, Portugal, Israel, Czech Republic, Morocco, Malta, Canada, and the Caribbean.

Differentiator

Problem solved

Functional benefit

Brands

• Whisper Lab: Research and development department where ideas are designed and engineered to simplify and improve the lives of customers. Develops and produces innovative technologies with full autonomy, creating customized products based on customer needs.
• Whisper Mini
• Whisper Mini Plus
• Whisper Prime Plus
• WS2 Bidirezionale

Products and services

• Whisper Mini Lightweight wireless unidirectional radio guide system operating at 2.4 GHz with 83 channels and up to 150m range. The receiver weighs 23 g and delivers up to 10 hours of battery life. Designed for tourism, sport, and leisure use cases, including guided tours, training, and group communication where a guide narrates to listeners.
• Whisper Prime Plus Unidirectional radio guide system operating at 863-865 MHz with 50/100 channels and up to 150m range. Features long battery life of up to 70 hours (receiver) and 26 hours (transmitter), removable battery, and branding customization options. Targeted at tourism and group communication customers needing long-duration rentals.
• WS2 Bidirectional Two-way bidirectional radio communication system for instructors and students operating at 702-902 MHz with 43 channels and up to 500m range. Supports three communication modes: One-to-One, Multi-Group (from KIT2), and Conference. Transmitter battery lasts up to 18 hours; receiver battery up to 56 hours in receive-only mode. Designed for sports coaching and training environments where real-time feedback is required.
• Mini PLUS KIT Premium all-in-one kit comprising Mini PLUS radios plus a carbon-fiber-look charging case with magnetic charging ports and UV-C LED sterilization (30-minute cycle, kills 99% of germs). Case stores, sanitizes, and recharges up to 54 receivers and 2 transmitters, delivering an 85% more efficient preparation workflow. Transmitter operates at 769-928 MHz with up to 167 channels and 500m range; receiver weighs 23 g with up to 20 hours of battery.
• Whisper LAB Custom R&D In-house research and development service that designs and engineers customized radio communication solutions for specific client requirements, from proof-of-concept through mass production. The service offers full autonomy from design to manufacturing, creating bespoke or branded radio-guide products for niche industrial or commercial applications.
• Radio Guide Rental Service Rental of Whisper radio guide systems for short-term (daily), medium-term (tour, 3-30 days), and long-term (30+ days) durations. Kits are delivered ready-to-use with customer support throughout the rental period. Used by tour operators, museums, cruise lines, event organizers, sports coaches, and educational institutions across 15+ countries with local pickup and delivery through the company's office and partner network.

Quantifiable outcome

• Reduces training dead time by 50% through real-time feedback
• +4 more outcomes

Named customers3 records

Segments4 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

Scale indicators4 records

Recent moves8 records

Expansion highlights5 records

Broad incumbents

• Sennheiser: German premium audio equipment manufacturer (now under Sonova for the consumer division) that produces professional tour guide and assistive listening systems including the Tourguide 1039 system. Comparable as a direct competitor in the wireless tour guide hardware category, but at significantly larger scale and broader pro-audio portfolio.
• Bose Professional: Professional audio division of Bose offering wireless conference, interpretation, and tour guide systems as part of a broader installed-sound portfolio. Adjacent incumbent with overlapping enterprise and institutional customer relationships but a much wider product range.
• Shure: US-based pro-audio manufacturer with wireless microphone and personal monitor systems used in tour-guide-adjacent applications (broadcast tours, large venue narration). Adjacent competitor with stronger brand recognition in pro audio, though tour guide is not a primary focus.

Direct peers

• Beyerdynamic: German pro-audio manufacturer offering the Synexis wireless tour guide system and Unite wireless communication platform for guided tours, conferences, and assistive listening. Direct competitor with overlapping product categories (transmitters, receivers, charging cases) and similar institutional customer base.
• Listen Technologies: US-based provider of assistive listening, audio over Wi-Fi, and tour guide wireless communication systems serving museums, houses of worship, and tour operators. Comparable as a direct peer in the wireless tour guide / assistive listening hardware category with similar rental and sale business model.
• Williams Sound: American manufacturer of wireless assistive listening and tour guide communication systems (Pocketalker, Digi-Wave, Tour Guide systems). Direct competitor in the dedicated wireless tour guide hardware segment, serving similar museum, tourism, and educational institution customers.
• DIS (Danish Interpretation Systems): Danish provider of simultaneous interpretation and conference communication systems widely used in European MICE and institutional events. Comparable in the business-events interpretation segment where Whisper's WS2 bidirectional system also competes, though DIS is more conference-centric.

Emerging players

• VoiceMap: App-based audio tour platform delivering GPS-triggered self-guided tours via tourists' own smartphones. Indirect competitor that commoditizes the consumer self-guided tour segment with a near-zero hardware-cost model, pressuring Whisper's lower-end rental volumes.
• Mipro: Taiwanese manufacturer of wireless microphone, tour guide, and portable PA systems sold globally through distributors. Comparable as an alternative supplier of wireless tour guide systems, particularly in Asia-Pacific markets where Whisper does not have direct presence.

Regional players

• Okayo: Taiwanese/Asian manufacturer of wireless tour guide, conference interpretation, and assistive listening systems distributed globally but with strongest presence in Asia-Pacific. Comparable product category with overlap in museum, tourism, and conference use cases, though primarily serving a different geographic market than Whisper's Europe-centric footprint.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/whispersystem

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles22 records

Subsidiaries1 record

Funding overview

Funding rounds

Investors

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 Whisper