
Development and distribution of tour guide systems, mobile loudspeakers and AI live translation for group communication
BMS Audio GmbH
Crailsheim · Nuremberg (vicinity)New on Amplifa
About BMS Audio
BMS Audio GmbH, headquartered in Crailsheim, develops and distributes tour guide systems, mobile loudspeakers and app-based audio solutions for group communication. The product portfolio includes the radio series TOM-Audio® (including acustra®, CLIP®, TG-200, TG-101), the mobile loudspeakers TX-820 and MP-20 as well as the elysium® app for tour guide and AI-supported live translation in over 29 languages. In addition to distribution, the company offers rental of the systems, training, product testing, on-site technical support as well as spare parts and repair service. The housings of the mobile loudspeakers are made of aluminium and steel; the devices use lithium polymer or lead-gel batteries and digital radio technology in the 2.4 GHz and UHF ranges. The solutions are used in tourism, coach travel, industry (plant tours, shopfloor meetings), museums, event technology, churches and for accessibility applications such as live audio description for the visually impaired. Founded in 1992, the family-run company employs around ten staff and was awarded the BSFZ seal for its research and development work.
- Site
- Crailsheim
- Processes
- Rental of tour guide systems and mobile loudspeakers, On-site product training (workshop up to 2 hours, up to 5 participants), Free product test (7-day test case), On-site technical support and transport (delivery, setup, collection, emergency kit), Spare parts & repair service for tour guide systems and mobile loudspeakers, AI live translation for tours (29+ languages, elysium® app), Live audio description sets for stadiums (for the visually impaired), Rental of tour guide systems
- Materials
- Aluminium, Steel, Lithium polymer battery, Lead-gel battery, Plastic
- Certificates
- BSFZ seal (research & development)
- Founded
- 1992
- Employees
- 10
- Industries
- Tourism and city tours, Coach operators, Industry (plant tours, shopfloor, safety briefings), Museums and culture, Event and trade fair technology, Churches and congregations
- 01
Product development (hardware & software)
- 02
Distribution and consulting
- 03
Rental of the systems
- 04
Training and product testing
- 05
On-site technical support and transport
- 06
Spare parts & repair service
Technology & Materials
Aluminium
Light carrying pole of the weatherproof mobile loudspeaker TOM-Audio MP-20 for portable outdoor use.
Steel
Robust steel tripod of the MP-20 for stationary setup of the loudspeaker system.
Plastic
Housings and accessory parts of the tour guide systems and charging docks.
Lithium polymer battery
Power supply of the tour guide systems with runtimes of over 30 hours.
Lead-gel battery
Grid-independent operation of the mobile loudspeaker TX-820 with up to 5 hours of operating time.
Locations

Crailsheim
DEHeadquarters, development and distribution
- Materials
- Aluminium, steel, plastic, lithium polymer battery, lead-gel battery
- TOM-Audio acustra (54 radio channels, approx. 100 m range)
- TOM-Audio CLIP (2.4 GHz, IPX4)
- TOM-Audio TG-200 (UHF, 70 channels)
- TOM-Audio TG-101 (UHF, 56 channels)
- TX-820 mobile loudspeaker
- Q802 mixing console
- elysium app system
Products





Inside the production




Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Rental of tour guide systems and mobile loudspeakersEngineering | – | – | – | – | Aluminium, Plastic, Lithium polymer battery |
| On-site product training (workshop up to 2 hours, up to 5 participants)Engineering | – | – | – | – | – |
| Free product test (7-day test case)Engineering | – | – | – | – | – |
| On-site technical support and transport (delivery, setup, collection, emergency kit)Engineering | – | – | – | – | – |
| Spare parts & repair service for tour guide systems and mobile loudspeakersEngineering | – | – | – | – | – |
| AI live translation for tours (29+ languages, elysium® app)Engineering | – | – | – | – | – |
| Live audio description sets for stadiums (for the visually impaired)Testing | – | – | – | – | – |
9 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Tour guide system (digital, with dialogue function) | BMS Audio TOM-Audio acustra | – | Radio range approx. 100 m, frequency 863-865 MHz + 823-832 MHz, 54 radio channels | 2026 | Crailsheim |
| Wireless earclip tour guide system (2.4 GHz, Bluetooth G2) | BMS Audio TOM-Audio CLIP | – | Radio range approx. 100 m, IPX4 | 2025 | Crailsheim |
| Digital tour guide system (UHF pocket transmitter/receiver, 70 channels) | BMS Audio TOM-Audio TG-200 | – | Radio range approx. 100 m | 2017 | Crailsheim |
| Tour guide system with dialogue function (UHF, 56 channels) | BMS Audio TOM-Audio TG-101 | – | Range up to 70 m outdoors / 40 m indoors | 2016 | Crailsheim |
| Mobile loudspeaker (UHF, 16 frequencies, 50 W RMS) | BMS Audio TX-820 | – | Range approx. 30 m, frequency range 70-17000 Hz | – | Crailsheim |
| Weatherproof mobile loudspeaker with radio handheld microphone (20/30 W) | BMS Audio TOM-Audio MP-20 | – | Frequency response 80 Hz - 40 kHz, height 1383 mm | – | Crailsheim |
| Stationary digital UHF transmitter | BMS Audio TOM-Audio TG-200 ST / TG-100ST | – | – | – | Crailsheim |
| Mixing console | Q802 | – | 2 microphone inputs, 48 V phantom power | – | Crailsheim |
| App-based tour guide system (tour guide / live translation) | BMS Audio elysium | – | – | 2018 | Crailsheim |
Additional services
Quality
BMS Audio places value on simple handling, long battery runtimes and durability; damaged devices are repaired to extend their service life. Declarations of conformity are provided for the products.
| Evidence | Crailsheim |
|---|---|
| BSFZ seal (research & development) |
Company History
- 1982
Development and production of mobile loudspeaker systems in Riet near Ludwigsburg (predecessor of the company).
- 1992
Founding of BMS Audio.
- 1995
Relocation to Crailsheim with a further branch near Nuremberg.
- 2010
Stronger specialization on tour guide systems.
- 2015
Introduction of the rental business for tour guide systems.
- 2016
First bidirectional tour guide system with question-back function (TOM-Audio TG-101).
- 2017
Market launch of TOM-Audio TG-200.
- 2018
Start of elysium® tgs app development; sales product GroupyCompany.
- 2019
Death of company founder Thomas Bayerlein; continuation by his two children; elysium® beta test.
- 2020
Move to new premises, Roßfelder Straße 65/5, Crailsheim.
- 2021–2024
Awarded the BSFZ seal for research and development.
- 2023
New website.
- 2025
30th anniversary since 1995; introduction of TOM-Audio CLIP®, live translation set and discontinuation of the TG-100.
- 2026
Market launch of TOM-Audio® acustra® as successor to the TG-101.