EARTEC UltraLITE HD UL431 – Wireless intercom for 4 people
Full duplex mix set with double master and single remotes
Special price: € 946.23
incl. VAT
( instead of 996.03 )
795.15 € w/o vat
in stock
Shipping cost More from EARTECNo returned or B-stock items sold as new
One contact who knows the equipment
Not left alone if a defect occurs
Full input-tax deduction for business customers
article number: 12060 | manufacturer number: UL431-HD | EAN/UPC: 0672225579366
The Eartec UltraLITE UL431-HD is a wireless full-duplex intercom set for 4 people. It combines a double-sided master headset with three single-sided remote headsets and is suitable for teams where different workstations have varying requirements for ambient hearing and noise isolation.
In this set, the master position uses a double-sided headset, while the three remote participants use single-sided headsets. This is useful when the central position needs to hear with particular focus, while the remaining team members should still be able to perceive ambient sounds.
Transmitters and receivers are integrated directly into the headsets. Separate beltpacks are not required, which means the system is ready for use quickly and the users' freedom of movement is maintained.
- 1 piece Eartec UltraLITE Double Master Headset ULDM-HD
- 3 pieces Eartec UltraLITE Single Remote Headset ULSR-HD
- 10-way charger
- 4 batteries
- Large carrying bag
- Wireless full-duplex communication without push-to-talk
- Direct communication within the team without separate beltpacks
- DECT technology in the registration- and fee-free 1.9 GHz frequency band
- Microphone boom with 270-degree swivel range, wearable on left or right
- Automatic microphone mute when microphone is folded up
- Replaceable lithium batteries for flexible operating times
The UL431-HD Mix-Set is suitable for productions and applications where team members need to communicate reliably, wirelessly, and without push-to-talk.
- Film, video, and studio productions
- Live events, stage, and event technology
- Broadcast, streaming, and camera communication
- Directing, camera, and technical teams
Please note: Images may differ from the product currently supplied. Some product photos have been scaled, background-removed or visually enhanced using artificial intelligence. The product features shown were not intentionally altered.
techn. Specs▲
Technical data
| Standard | DECT | DECT 6.0 (Digital Enhanced Cordless Telecommunications) |
|---|---|---|
| Frequency | USA | 1920 - 1930 MHz |
| Europe | 1880 - 1900 MHz | |
| Frequency range | Preferred frequency | TX/RX: 1921.536 - 1928.448 MHz |
| Tuning range Receive | 1921.536 – 1928.448 MHz | |
| Power | Max. Transmission power | 100 mW |
| Transmission | Usage type | TDMA |
| Channel tuning Step | 1,728 MHz | |
| Channel bandwidth | 1,728 MHz | |
| Modulation | GFSK | |
| Transmission speed | 1,152 Mbit/s (Baud Rate) | |
| Duplex / Access | Duplex | Time Division Duplex (TDD) |
| Access method | Time Division Multiple Access (TDMA) | |
| Audio | Speech coding | ADPCM / 32 kbit/s |
| Range | Max. Distance | approx. 300 meters(line of sight, depending on terrain) |
| Power supply | Headset battery | Rechargeable lithium 3.7V / 800mAh / 3.0 Wh |
| Charger | AC adapter: input 110 - 240 V AC | |
| Operation | Charging Time | approx. 3 hours |
| Operating time | approx. 5 – 6 hours | |
| Environment | Operating temperature | 0 °C to 40 °C |
| Storage | -10 °C to 50 °C | |
| General | Weight | approx. 113 g (individual devices) |
Questions & Answers▲
What is the difference between the Master Headset and the Remote Headsets in this set?
The Master Headset is double-sided and covers both ears, allowing for better isolation from ambient noise. The three remote headsets are one-sided so that wearers can still perceive their surroundings. This combination is suitable for teams in which the central position needs to listen more concentratedly than the other participants.
Do I need additional beltpacks or transmitters for operation?
No. Transmitter and receiver are integrated directly into the headsets. No separate belt packs or external transmitters are required, which makes the system particularly compact and easy to use.
How many people can communicate with each other at the same time?
The set is designed for 4 people. The system supports direct communication with up to 5 UltraLITE units, so that an additional unit can be added if necessary.
Do I have to press a talk button to speak?
No. The system works as a full duplex intercom without a talk button. All participants can speak and hear at the same time, similar to a normal conversation.
What range can be achieved with the system?
The specified range is up to 400 meters. However, this value depends on the operating conditions, as obstacles, building structures or other radio sources can reduce the actual range.
Which radio technology is used and is registration required?
The system uses DECT technology in the 1.9 GHz frequency range. This frequency range is registration and fee-free, so no official approval or frequency license is necessary.
How long does a battery last in operation?
With a fully charged battery pack, operation for up to 6 hours is possible. Since the batteries are replaceable, the operating time can be extended with replacement batteries.
How are the batteries charged and how many can be charged at the same time?
A 10-fold charger is included in the scope of delivery. This means that all supplied batteries can be charged at the same time, which is particularly practical between uses or after longer production days.
Can the microphone be muted?
Yes. The microphone automatically mutes when the microphone arm is folded up. A manual mute button is not required.
On which side can the headset be worn?
The microphone arm can be swiveled 270 degrees and can be worn on both the left and right. Each user can adapt the headset according to their preferences.
What is included in the scope of delivery?
The scope of delivery includes: 1 double-sided master headset, 3 single-sided remote headsets, 4 lithium batteries, a 10-fold charger and a large bag for the entire 4-person set.
What areas of application is the set suitable for?
The set is suitable for film, video and studio productions, live events, stage and event technology as well as for broadcast and streaming productions. This system is a practical solution wherever teams need to communicate with each other reliably and without hard wiring.
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