Buy a system
Equip your team for regular tours. Choose an OTG-200 or D220 setup with IHOS live translation, configured around your group and languages.
Ask for a purchase quoteOne guide, one departure. ihos translates live commentary into your chosen languages, on receivers or phones.
Buy, rent or connect your own equipmentΚαλώς ήρθατε στην Ακρόπολη.
Buy, rent or connect your existing tour system. IHOS adds live translation so guests hear the same tour in their language.


Product photography: Okayo. IHOS provides the live translation; the radio equipment carries the audio.
One live commentary, in the guide’s language.
The IHOS hub routes each translated audio feed.
A separate transmitter and channel carry each selected language.
Receivers are set to the guest’s language channel.
From IHOS, audio can also reach guests through a QR link in their phone browser. Plan receivers, phones or a mix for the same group.
Plan a mixed groupThe guide and IHOS hub need internet for cloud translation. Receiver listeners need neither a phone nor mobile data. Guests listening in a phone browser need their own internet connection.
A couple from Germany, a family from France and a group from China join the same tour. One guide, one schedule.
Tell us which languages you need. We confirm the language pairs and test them for your tour.
Your guides keep leading the tour and telling the story. ihos translates their speech into the selected languages.
Guests ask in their own language from their phone, and the guide hears the question translated.
Explore OTG-200 and D220 setups for translated group tours. ihos provides the live translation; the guiding system carries the audio.

A dedicated guiding system with hardware talk-back and group management tools. Explore an ihos setup that carries translated commentary to your guests’ receivers.

Compact guiding devices with built-in microphones and guide-controlled hardware talk-back. Plan your language channels and ihos translation setup for the way your group travels.
OTG-200 and D220 both support hardware talk-back. That radio feature is separate from a translated return path through ihos. Phone guests can ask translated questions; we can demonstrate that workflow in an arranged product walkthrough. Translated receiver talk-back is checked separately for your setup.

Guests on phones can ask a spoken question in their language. The guide hears it translated and answers the group.
Plan your first groupTry it with your voice
A real microphone demo. Choose a language, start, and say a few sentences as if you were guiding a tour.
Live demo is not connected yet. You can explore the illustrated tour below.
Your words will appear here.
The translated voice will arrive as you speak.
Use headphones to prevent feedback. Speak in a different language from the one you selected. Stop ends microphone capture immediately. This demo does not save your audio on the ihos server.
Live speech-to-speech preview. Translation and voice reproduction can vary.
Imagine this on your next tour. Book a live demo →
The tour is paused. Press “Continue tour” when you are ready for the next sentence.
Καλώς ήρθατε στην Ακρόπολη. Στεκόμαστε στα Προπύλαια, τη μνημειακή πύλη του βράχου.
Welcome to the Acropolis. We are standing in the Propylaea, the monumental gateway to the rock.
Bienvenue sur l'Acropole. Nous sommes dans les Propylées, la porte monumentale du rocher.
Willkommen auf der Akropolis. Wir stehen in den Propyläen, dem monumentalen Tor zum Felsen.
欢迎来到雅典卫城。我们现在站在山门,也就是这座岩石的纪念性入口。
How it works
Choose the language you will speak and the language in which you want to hear questions.
They scan the QR on their phone and choose a language in the browser. They listen through earphones and can ask questions.
The guide speaks English and the listener hears Greek. They ask in Greek and the guide hears English — live.
No. Guests scan the tour QR code and listen in their phone browser. Only the guide uses the ihos app.
A phone with an internet connection and their own earphones. If you prefer, they can listen on a dedicated tour receiver with an earpiece instead, with no phone needed.
Yes, a few seconds, much like a human simultaneous interpreter. Guests hear the same tour, a moment behind the guide's voice.
Yes. Guests on phones hold a button and ask in their own language; the guide hears the translation. OTG-200 and D220 also have hardware talk-back. Routing those receiver questions through ihos translation is checked separately for your setup.
Tell us the languages you need. We will confirm the language pairs and test them with you in your setup demonstration.
Yes. The interpretation runs live in the cloud, so the guide's phone needs a data connection, and so do guests listening on their phones. Guests on receivers don't, because the audio reaches them by radio from the transmitter.
The ihos Android hub sends each translated language to its own transmitter channel. Tell us which system you use so we can check it and test the full setup with you during the pilot.
No. Your guide leads the tour, tells the story and answers questions. ihos translates their speech into the group’s selected languages.
Tell us your group size, languages, route or meeting format, and any equipment you use.
Try the listening experience and question flow with the language pairs that matter to you.
Agree the setup, check connectivity and confirm the practical details before your pilot.
Request a demo, a purchase or rental quote, or a compatibility review. Tell us your languages, group size, location and dates. This sends an enquiry; it does not place an order or confirm a booking.
We will reply within two working days to discuss your setup or demo. No order or booking has been placed.