Rent Catchbox microphones
A catchbox is a wireless microphone wrapped in a soft, lightweight cube that you can safely throw across the room. Instead of a presenter walking a handheld microphone along every row, the participant who wants to ask a question simply catches the box. HuurAV sets the catchbox to a clear frequency in advance, connects it seamlessly to the venue system and makes sure every question comes through clearly, without fuss or fumbling with cables.

What a catchbox is and what you use it for
A catchbox is a wireless microphone wrapped in a soft, cube-shaped casing of lightweight foam. That shape is not a gimmick but the heart of the idea: you can throw the box across the room to whoever wants to ask a question. The person catches it, asks the question, then passes it on to the next. Inside sits an ordinary wireless microphone that sends the sound through a receiver to the mixing desk and the speakers, exactly like any other wireless connection.
The difference with a classic handheld microphone lies in the way you move it around. In a traditional question round a presenter or a member of staff walks a handheld microphone through the rows, and that takes time. In a large room you often see the momentum drain away the moment someone at the back has a question: everyone waits for the microphone to arrive. A catchbox solves that in a single throw. The box bridges the distance in a few seconds and keeps the energy in the room high. It also lowers the threshold. A question round feels looser and more approachable when the microphone literally comes to you, and people who would otherwise stay quiet are more likely to take part.
A catchbox is a specific part of a broader sound setup. It does not replace the speaker’s microphone on stage but complements it: the speaker has a handheld microphone or headset, and the audience gets the catchbox for the interaction. Together they make sure both the presentation and the responses from the audience come through clearly.
Why the soft cube shape works
The casing is built from light, resilient foam. That serves two purposes. First, it protects the microphone inside against the impact when the box hits the floor or is caught hard. Second, it makes the box safe and light enough to throw to someone without hesitation. Even if someone misses it, no harm is done. That combination of safety and durability is exactly what an ordinary handheld microphone cannot offer, because that is precisely what you do not want to see flying across a room.
When to use a catchbox
The value of a catchbox comes to the fore as soon as you want interaction with a larger audience and the time it takes to walk a microphone around is too precious. A few concrete situations make that clear.
At a presentation or conference a catchbox is at its best. After a keynote or a lecture there is often a question round, and it is exactly there that the pace determines whether the audience stays engaged. With a catchbox the host or a member of staff throws the box straight to the person with a question, wherever they are seated. That keeps the Q&A brisk and makes sure every question comes through the speakers clearly, including for the people at the back who otherwise would not hear the questioner. At a parallel session or a breakout the same principle works on a smaller scale.
At a corporate event with an interactive programme, for example a townhall or a conversation with the management team, the catchbox makes engagement visible. Staff ask questions without having to walk to a microphone stand, and the whole thing feels more informal and open. That suits gatherings where you specifically want to open up the conversation with the room.
At a party or company party with a quiz, a pub quiz or an interactive game element, the throwable microphone is a fun feature. Teams call out their answers, and the box goes into the room to whoever’s turn it is. Its playful character suits the mood and keeps the pace of the game going.
And at a wedding a catchbox can add a cheerful twist to a game moment, for example a quiz about the couple or a round of anecdotes. Guests pass or throw the box along and spontaneously share a story, without anyone having to walk a microphone past the tables. It makes the interactive part of the evening light-hearted and connecting.
The technology: setup, tuning and operation
Frequency selection and tuning
A catchbox is and remains a wireless microphone, and that means the frequency has to be right. Before we set up, we scan on site to find out which channels are free and interference-free. The catchbox gets its own frequency that does not clash with the speakers’ microphones, with any other wireless systems or with the venue’s own equipment. If you use several catchboxes, we spread them across channels that do not overlap. That tuning is invisible to the audience, but it is the reason a question from the room comes through without noise or dropouts.
Positioning the receiver and the speakers
We place the receiver so that it keeps a clear line of sight across the whole room, because the box moves unpredictably through the space. Antennas should not be tucked away behind metal, so that the signal stays strong everywhere, even on the back row or in a corner. Just as important is that the speakers bring the question back to the rest of the room. A question heard only by the person asking it misses its purpose; the setup must make sure everyone can hear both the question and the answer. That is why we tune the catchbox within the same audio chain as the speaker microphones.
Setup and testing
We set up well before the start, so there is time to test everything calmly. We walk the catchbox through the whole room: we check that the signal stays stable in every spot, from the front row to the farthest corner, without dead zones. We also set the level on the mixing desk, so a question is just as audible as the speaker on stage and no large difference in volume arises. We check the battery and keep a spare ready, because just as with any wireless microphone, a flat battery is the most common cause of failure.
Operation on site
During a question round a catchbox calls for active operation. A technician opens the box at the right moment and mutes it between questions, so that no unwanted sound or feedback arises when the box is resting on a table for a moment or flying through the air. When the programme switches from the presentation to the Q&A, the technician follows smoothly and balances the question from the room against the speaker’s answer. If you want to keep control yourself, we deliver the set ready to use with simple operation and clear instructions.
Points to watch specific to a catchbox
A few things deserve extra attention with a catchbox. The first is muting between throws. While the box is in the air or being passed from hand to hand, you do not want it open, otherwise you hear rumbling, wind or the sound of it being caught. A technician who opens and closes the box at the right moment keeps the question round clean and clear.
The second point is the path of the throw. When setting up we take the layout of the room into account: with a theatre setup of fixed rows you throw differently than with loose tables or a standing setting. We make sure there are clear lanes to throw and that the host or member of staff managing the box has a good overview of the room.
The third point is battery management. Like any wireless microphone, the catchbox runs on batteries that need to be fresh at the start of each part of the day. We provide a full battery and keep a spare to hand. Finally, do not underestimate the surroundings: thick walls, a lot of metal or a busy radio spectrum in a large conference building can affect the range. We counter that with the frequency scan and thoughtful placement of the receiver.
Combining with light, video and effects
A catchbox rarely stands alone. It is the means by which the audience joins in, and that is exactly why it has to work seamlessly with the rest of the production. If you work with video, for example a presentation on a screen or a live camera bringing the questioner into shot, the sound of the catchbox connects to the same system, so a question is as clear to hear as the image is to see. At a hybrid or streamed conference that matters even more, because the viewers at home also need to understand the question.
Light plays a part too. During a question round it helps if the room lighting comes up slightly the moment the box goes into the audience, so that the questioner becomes visible and the mood shifts from listening to taking part. And if you work with special effects, such as a festive moment after a successful session, that climax lands most strongly when the sound comes through full and clear at that same instant. By tuning sound, light and video to each other, you create one coherent experience instead of separate parts.
Practical tips
Decide in advance how large your room is and where the questions will come from, because that tells us whether one catchbox is enough or whether several boxes cover the audience better. Share the layout of the room as early as possible, whether it is a theatre setup, a cabaret setup or loose tables, so we can tune the throw paths and the placement of the receiver to it. Agree who manages the box during the Q&A, usually the host or a member of staff, so the throwing runs smoothly and under control. And count on a spare battery for a long day; that is the simplest way to prevent failure.
If you want to pick up and use individual equipment yourself for a small gathering, you can hire it directly online through SpeakerVerhuur.nl. HuurAV is part of Speaker Verhuur Amsterdam and, in addition, takes care of the complete tuning, connection and operation on site, including scanning the frequencies and balancing with the speaker microphones.
Request a no-obligation quote
Would you like a question round that runs smoothly and in which every question from the room is clear to hear? Tell us about your programme, the size and layout of the room and the number of participants, and we will choose the right catchbox or catchboxes, scan the frequencies and take care of the setup, tuning and operation on site. Request a no-obligation quote and we will put together a fitting proposal for you.
Renting rent catchbox microphones
What exactly is a catchbox?
A catchbox is a wireless microphone housed in a soft, cube-shaped foam casing. That lets you safely throw it across the room to whoever wants to ask a question. The microphone inside works just like an ordinary wireless microphone and feeds through a receiver to the mixing desk and the speakers. The foam protects the electronics on impact and keeps the box light enough to catch without any risk.
Why use a catchbox instead of a regular handheld microphone?
In a large room it takes a lot of time to walk a handheld microphone to every person with a question, especially when the questions are scattered around. A catchbox bridges that distance in a single throw and keeps the programme moving. On top of that, throwing makes the question round feel lighter and more approachable: people who would otherwise hesitate are more likely to join in. For a speaker or host on stage a classic handheld microphone or headset remains perfectly suitable, of course.
Is a catchbox safe to throw?
Yes. The box is built from lightweight foam that protects the microphone and is soft enough to catch or drop without any risk. It weighs very little, so even if someone misses it, no harm is done. We do take the walkways and seating height into account when setting up, so a throw always has a clear path and does not have to fly over people's heads in places where that would feel awkward.
How many participants can use the catchbox?
In principle there is no limit, because the box simply passes from hand to hand across the whole room. For a very large or long room we can deploy several catchboxes, each on its own frequency, so a question on the left and a question on the right do not get in each other's way. We work out in advance how many boxes and channels your room and programme need.
Can I pick up and use a catchbox myself?
You can hire individual equipment directly online through SpeakerVerhuur.nl. If you want certainty about the frequency, the connection to the venue system and the operation during the question round, we take care of it all, complete with a technician on site. For a conference or an important Q&A we recommend the latter, because the balance with the rest of the sound is then exactly right.
Renting rent catchbox microphones for your event?
Tell us what you are organising. We advise, deliver, build and operate on location, or you rent it yourself through our webshop.