Every listener hears their own language, live.
A complete 25-person bilingual simultaneous interpretation system for conferences, meetings and court proceedings. Superior sound quality and coverage range, with a dual interpreter console that lets one or two interpreters monitor the floor and route the interpretation to one of two language groups.
Buy Now System IncludesOne language per channel, so listeners never switch headphones
The system works from the simplest interpretation settings, where the floor language remains the same, to complex scenarios where the floor language might change.
The floor speaks
The floor audio goes into the IC-50 dual interpreter unit, which sends it automatically to any channel that is not in use.
The interpreter interprets
One or two interpreters monitor the floor, activate their microphone and route the interpretation to one of two language groups.
Everyone hears their language
Each T-500 transmitter broadcasts one language channel. Listeners pick their channel on the R-120 receivers and keep their headphones on at all times.
System Includes:
- (25)Enersound R-120 Digital FM Receivers with LCD screen (no backlight.)
- (2)Enersound T-500 17-Channel Base Transmitter.
- (1)Enersound IC-50 Dual Control Unit.
- (2)Interpreter Headset with Microphone.
- (25)Enersound Double Earphones for Audience.
- (2)12' XLR Male to XLR Female Professional Cable (to connect transmitters to interpreter console.)




- Two-way interpretation.
- IC-50 console can accommodate two interpreters of the same language combination.
- Operating range of 500 ft (expandable up to 1000 ft).
- Superb sound quality and reliability.
- Expandable to an unlimited number of receivers.
Built around four professional components
IC-50 Dual Interpreter Unit
- Dual interpreter positions with independent microphone and headphone volume controls.
- Two-way bilingual operation between two languages.
- Automatic floor pass-through to unused channels.
- XLR/¼″ MIC/LINE input plus TRS and TRRS headset support.
- Compact and portable. One-year warranty.
T-500 Transmitter
- 17 selectable channels in 72–76 MHz.
- Range expandable up to 1000 ft with an external antenna.
- Broadcasts to an unlimited number of receivers.
- Multiple inputs and connector types; LCD display with backlight.
- Tabletop or rack mountable. FCC/IC approved. Limited lifetime warranty.
R-120 Receivers with headphones
- 20 user-selectable channels and a channel lock feature.
- 100% digitally tuned, with an LCD screen.
- Long battery life, up to 55 working hours.
- Belt clip, neck strap and Velcro armband carrying options.
- Small and lightweight. Limited lifetime warranty.
INT-SENMIC Interpreter Headset
- Stereo headset with high-quality audio.
- Passive noise-canceling microphone for clear conversation.
- Plug-and-play dual 3.5 mm jacks.
- Lightweight on-ear design for comfort.
Add accessories for your venue
CAS-725 case
Carrying/shipping case that holds up to 25 receivers, with a removable accessory tray. Made in the USA.
CAS-550 case
Carrying/shipping case that holds up to 50 receivers. Waterproof, impact resistant, crushproof and dustproof.
RM-501 / RM-502 rack mounts
Mount one (RM-501) or two (RM-502) T-500 transmitters on a standard 19" rack.
ANT-501 remote antenna
50' coax cable, for when the transmitter must be placed away from the audience, such as an adjacent room.
TTBooth tabletop booth
Portable tabletop interpretation booth for one or two interpreters. Fits on a 6 ft or 8 ft table (table not included).
HEAD-702 and EAR-102 headphones
Premium foldable headphones (HEAD-702) or over-the-ear stereo headphones with a 3.5 mm plug (EAR-102).
Backed by warranty and US-based support
System Setup

Please note: This system does not translate automatically. It can be used with a human interpreter or connected to a computer with translation software (not included in this bundle).
Technical specifications
T-500 transmitter
| Operating frequency | 72.1–75.9 MHz |
|---|---|
| Channels | 17 selectable |
| Frequency deviation | Selectable: wide ±75 kHz or narrow ±25 kHz (max deviation) |
| Frequency accuracy / stability | ±0.005% / ±20 ppm |
| Output power | High: 80,000 µV/m at 3 m · Low: 40,000 µV/m at 3 m |
| Antenna | 50 Ω rubber ducky antenna or optional remote antenna; modified TNC connector |
| Compliance | FCC Part 15, Industry Canada |
| Frequency response | 100 Hz – 15 kHz |
| Signal-to-noise ratio | 70 dB |
| System distortion | <2% THD at 80% deviation |
| Audio input 1 | 3-pin XLR and ¼" TRS combination jack, mic or line level, balanced or unbalanced; 12 VDC phantom power |
| Audio input 2 / external monitor in | RCA jacks, unbalanced line level (−10 dBu nominal, 100 kΩ) |
| REC output | RCA jack, unbalanced line level (−10 dBu nominal) |
| Mic input | Front panel 3.5 mm TRS jack, +DC on tip for electret mics |
| Headphone out | 3.5 mm stereo TRS jack, adjustable level, 4–16 Ω |
| Power supply | In: 100–240 VAC, 50–60 Hz · Out: 15 VDC, 1 A |
| Dimensions (D×W×H) | 5" × 5.5" × 2.36" |
| Unit weight | 1.2 lbs (0.54 kg) |
| Rack mounting | 1½ rack space height, ½ rack space wide; one or two transmitters with optional RM-501 or RM-502 |
R-120 receivers
| Batteries | (2) alkaline AAA or (2) NiMH AAA rechargeable |
|---|---|
| Battery life | Up to 55 hours (alkaline) · up to 40 hours (NiMH rechargeable) |
| Channels | 20 user-selectable |
| Frequency range | FM 72.0 to 76.0 MHz |
| FM deviation | ±75 kHz |
| De-emphasis | 75 µs |
| Sensitivity | 1.12 µV at 12 dB SINAD |
| Signal-to-noise ratio | 55 dB at 100 µV |
| Audio frequency response | 80 Hz to 12 kHz |
| Audio power | 33 mW + 33 mW at 32 Ω |
| Audio connector | 3.5 mm stereo phone jack |
| Current consumption | 22 mA nominal |
| Dimensions | 3" diameter, 1.22" high |
| Weight without batteries | 2.3 oz (65 g) |
IC-50 dual interpreter unit
| Dimensions (W×H×D) | 5.5" × 1.8" × 4.6" (140 × 45 × 116 mm) |
|---|---|
| Weight | 1.27 lbs (575 g) |
| Power | External power supply, 15 VDC, 1 A, 100–240 VAC, 50/60 Hz (included) |
| Floor input | 3-pin XLR / ¼" combination jack, balanced or unbalanced, selectable LINE/MIC level |
| Microphone inputs | Interpreter 1 and 2, 3.5 mm TRS jacks for electret condenser microphones |
| Headset jacks | 3.5 mm TRRS, combined microphone and headphone connections |
| Headphone outputs | 3.5 mm TRS stereo jacks, 32 to 600 Ω, 40 mW + 40 mW into 32 Ω |
| Channel A / B outputs | 3-pin XLR male, balanced line level, max +16 dBu into 600 Ω |
| Frequency response | 20 Hz to 20 kHz ±3 dB |
| Signal-to-noise ratio | > 75 dB (floor line input) |
| Distortion | < 0.3% at +4 dBu, 1 kHz (outputs A/B) |
| Operating conditions | 0 to 40 °C (32 to 104 °F), 20 to 80% RH, non-condensing |
| Warranty | 1 year, parts and labor |
| Mic ON/OFF | Push buttons, interlocked: only one interpreter's microphone is active at a time |
| Output A / B | Push buttons, interlocked: selects which channel receives the interpreter's audio |
| Floor Feed A / B | Slide switches: enable or disable floor audio pass-through to each output channel |
Planning a multilingual meeting or event?
Tell us about your venue, your audience and the languages you need, and we will help you set up the right system.
Call (888) 737-4030 Chat with a specialistFAQs About the Bilingual Simultaneous Interpretation System
Does this system translate automatically?

No. This system does not translate automatically. It can be used with a human interpreter or connected to a computer with translation software (not included in this bundle).
How many interpreters can use the IC-50?

The IC-50 console can accommodate two interpreters of the same language combination, with independent microphone and headphone volume controls for each position.
How does two-way interpretation work?

The IC-50 supports interpretation in both directions between two languages. Interpreters select Output A or B to send their audio to the matching T-500 transmitter, and each transmitter broadcasts one language channel to the receivers.
What is the operating range?

The operating range is 500 ft, expandable up to 1000 ft with an external antenna such as the optional ANT-501 remote antenna.
How many listeners can I add?

The system can be expanded to an unlimited number of receivers. The 25-person system includes 25 R-120 receivers with earphones.
How long do the receiver batteries last?

The R-120 receivers run up to 55 hours with alkaline AAA batteries and up to 40 hours with NiMH rechargeable AAA batteries.
What warranty does the system have?

The T-500 transmitters and R-120 receivers have a limited lifetime warranty. The IC-50 dual interpreter unit has a one-year warranty on parts and labor. Warranty and tech support are based in the US.
