Wireless audio for corporate events
Congresses, multilingual conferences, seminars, trade shows: since 2013, Noizless Madness has been equipping professional events with wireless headsets, from 50 to 2,500 participants, in Belgium and across Europe. Delivery, setup and an on-site technician on request.
EAU Congress (European Association of Urology), London, March 2026: 2,500 delegates equipped, 13 channels running simultaneously.
The challenge
In a plenary session, a seminar or a general meeting, whatever the audience fails to catch is lost. Exhibition halls reverberate, multi-purpose rooms echo, and two neighbouring sessions end up drowning each other out. As soon as the audience is international, several languages come into play as well.
With a headset, each participant gets the sound straight to the ear, free from the room’s acoustics. They pick their language or session and set their own volume, while the organiser can fit several programmes into a single space.
Event formats
Plenary, keynote, live demo: each talk can have its own channel, and the audience switches from one to another without leaving their seat.
Each language has its own channel. Participants select theirs on the headset.
Several workshops in the same room, each on its own channel, with no partitions and without disturbing one another.
A presentation on your stand or a demo area that stays clearly audible over the noise of the hall.
Factory, building site, campus: the guide speaks into a microphone connected to a belt-pack transmitter, and the group hears them up to 50 m away, even on the move.
Several DJs playing in parallel, each guest picks their style, and the neighbours are left in peace late into the night.
Up to 13 simultaneous audio channels: 8 guaranteed throughout Europe, 5 more depending on local regulations. For the details, see our technology.
How it works
Number of participants, languages, sessions, floor plan: we work out how many headsets, channels and transmitters you need.
We work with your agency, your interpreters and the venue’s technical team, following the venue’s protocols.
The equipment arrives in flight cases, ready to use, with nothing extra to provide on site. From 100 headsets, our team handles the installation for a fully turnkey service.
From 100 headsets, a Noizless technician is on site from start to finish, managing the channels and answering any technical questions.
Transmission is analogue, so the sound arrives with no perceptible delay. Interpretation stays in step with the speaker, and sound with the projected image.
The first 8 channels use UHF bands that are licence-free throughout Europe. Outside Belgium, we check the local rules for the other 5. On the most demanding setups, we work with RF Transmission, a Belgian specialist in radio frequencies for events since 1995.
For speech, we supply the Standard headset: lightweight, with at least 9 hours of battery life, enough for a full conference day. Full details of the headsets and transmitters are on the Equipment page.
Case studies
Over 150 events since 2013, in Belgium, France and across Europe.
European Association of Urology, London, March 2026
In the plenary hall, several operating theatres are broadcast live at the same time. Each broadcast has its own channel: delegates choose which one to follow from their seat, without the hall having to be divided up. It is the textbook case of parallel sessions, on the scale of an international congress.
delegates equipped
simultaneous channels
Partner event agency, including for Toyota events.
“Thorough preparation, excellent follow-up and always proactive on site, all combined with seriously cool headsets. Noizless Madness is simply a great choice!”
Philippe Malfroot, DDMC
“Such a pleasure working with you! At the Winter Circus, everything was perfect, and you saved me at the last minute. Responsive, flexible and quality guaranteed: I recommend you 100%!”
Julie Van Goethem, Event Manager, The Friends
Past clients include Coca-Cola, Deezer, DDMC, the Louvre and the Royal Museums of Fine Arts of Belgium. For our cultural work, see immersive shows and cultural venues.
FAQ
It depends on the number of participants, the number of channels and the duration. Rates go down for large volumes and multiple days, starting at €2.50 excl. VAT per headset. The simulator gives you the total straight away; delivery, the technician (required from 100 headsets) and hostesses are quoted separately.
Each interpreter speaks into a microphone connected to their own transmitter, and each language has its own channel. We fine-tune the setup with your interpreters or your agency before the event. On the day, participants choose their language on the headset, with no fixed booth to install in the room.
Yes. Each session has its own channel, and the participants in each group hear only theirs. A large open space without partitions can therefore host several workshops at once. At the EAU Congress in London in March 2026, sessions were broadcast in parallel in the same plenary hall, over 13 channels.
Not for the first eight channels: they use UHF bands that are licence-free throughout Europe. The five additional channels are licence-free in Belgium and most European countries; outside Belgium, we check the local rules before the event.
The headsets arrive in flight cases, ready to hand out. For large volumes, our hostesses can take care of distribution at the reception desk, assist participants and collect the headsets at the end of the day.
The Standard headset has at least 9 hours of battery life, enough for a full day of sessions. Rental is by the day, with lower rates over several days.
Yes, from 100 headsets a Noizless technician must be present. They install and configure the system, then manage the technical side for the whole event.
In Belgium, France and across Europe, for events of 50 to 2,500 participants. Over 3,300 headsets are available in stock.
Ideally at least a month ahead, depending on the number of headsets. If your date is sooner, get in touch anyway: it all depends on the volume and our schedule.
Every time, with a mild disinfectant and antibacterial cleaning product.
The simulator gives you an instant estimate. For a tailored setup, tell us about the venue, the number of participants and the languages: our team will get back to you directly.
