UHF/RF wireless transmitters for silent headphones: fixed, portable, and multichannel
The transmitter carries audio from the source to the headphones: a mixer, a DJ, an interpreter, a trainer’s mic, or a smartphone. Each channel is a different source, and every guest chooses what to listen to.
Six models, with a range of 60 to 400 meters and up to 45 channels, all compatible with Silentsystem headphones.
Three families
High-power fixed
TX-500 and TX-350: up to 400 m, for silent discos, concerts, conferences, and large events.
Portable
TX-300, TX-330, and TX-400: with microphone input, for fitness, yoga, walks, and guided tours.
Short range
TX-100: up to 60 m, for small groups and home use.
6Modelsfixed, portable, and short range
45Channelsmax, on the TX-500
400 mRangemax, on the TX-500 and TX-350
100 mWPoweradjustable, on the TX-500 and TX-350
Start with your event
Silent disco, concerts, and festivals
Multiple DJs or stages at the same time, even across large areas: TX-500 and TX-350, up to 400 m.
Conferences and simultaneous interpretation
One language per channel, multiple rooms in parallel: the TX-500 handles up to 45 channels.
Fitness, yoga, walks, and guided tours
The trainer or guide carries the transmitter and speaks into the microphone: TX-300, TX-330, and TX-400.
Small groups and home use
For listening at home or in small spaces, up to 60 m: TX-100.
All Silentsystem transmitters
Fixed · high power
- 3, 10, or 45 channels
- Range up to 400 m
- Power 10 / 30 / 50 / 100 mW
- RCA audio input
- 12 V DC power
High power · built-in battery
- 3 or 5 channels
- Range up to 400 m
- Power 10 / 30 / 50 / 100 mW
- RCA, Bluetooth, and microphone inputs
- 12 V DC or built-in battery
Portable · microphone input
- 3 or 10 channels
- Range up to 300 m
- 3.5 mm jack input and Bluetooth
- 3.5 mm jack microphone input
- 10-hour lithium battery or 12 V DC
Portable · microphone input
- 3 or 10 channels
- Range up to 300 m
- 3.5 mm jack input and Bluetooth
- 3.5 mm jack microphone input
- 10-hour lithium battery or 12 V DC
Portable · pocket-size
- 3 or 5 channels
- Range up to 100 m
- 3.5 mm jack input
- 3.5 mm jack microphone input
- Powered by 3 AAA batteries
Short range · home use
- 3 channels
- Range up to 60 m
- 3.5 mm jack input
- Power < 10 mW
- 12 V DC power
The transmitters at a glance
Every model transmits in stereo on the 863 / 915 MHz bands, with a 30–20,000 Hz frequency response, a signal-to-noise ratio above 75 dB, and distortion below 1%. Range figures are maximums: walls and obstacles reduce them.
| Model | Type | Channels | Range | Inputs | Power |
|---|---|---|---|---|---|
| TX-500 | Fixed | 3 / 10 / 45 | 400 m | RCA | 12 V DC |
| TX-350 | Fixed / battery | 3 / 5 | 400 m | RCA, Bluetooth, microphone | 12 V DC / battery |
| TX-300 | Portable | 3 / 10 | 300 m | Jack, Bluetooth, microphone | 10 h battery / 12 V DC |
| TX-330 | Portable | 3 / 10 | 300 m | Jack, Bluetooth, microphone | 7 h battery / 12 V DC |
| TX-400 | Portable | 3 / 5 | 100 m | Jack, microphone | 3 × AAA |
| TX-100 | Short range | 3 | 60 m | Jack | 12 V DC |
Headphones, accessories, and services
Wireless headphones
Eight headphone and in-ear receiver models, for every type of event.
Audio accessories
Antennas and microphones to extend your system’s coverage and capabilities.
Rental
For a single event, with or without technical support.
How it works
Channels, frequencies, range: the guide to headphones and transmitters.
Transmitter FAQ



