When your event depends on clear multilingual communication, unreliable audio and complicated equipment are not an option. The Retekess TT117 TT118 Simultaneous Interpretation System provides a simple and dependable way to deliver real-time interpretation for meetings, church services, factory tours, training sessions, and international events. It also supports flexible multi-channel expansion, making it easy to add more language feeds or audio sources in the same venue.

17 Selectable Channels, Accommodates Up to 6 Interpreters

Coordinating interpretation for multiple language groups can quickly become confusing—especially when attendees need to switch languages on the spot. The TT117 + TT118 system offers 17 selectable channels for flexible setup and accommodates up to 6 interpreters in the same venue, helping organizers assign languages more clearly and helping listeners find the right channel faster. TT118 receivers can be used in systems that include compatible transmitters such as the Williams Sound PPA T35, T27, T32, and T36, helping reduce replacement costs during upgrades or expansion.

Stable Audio Across Your Venue

Weak coverage leads to missed words and constant repetition. Using the reserved 72–76 MHz FM band, this system delivers clear, reliable audio at distances up to 262 ft (80 m) in open areas. Because FM signals can pass through walls and common obstacles, listeners can stay connected without needing a direct line of sight—ideal for conference rooms, worship spaces, tours, and multi-room events.

Replaceable AA Batteries Keep You Running Without Downtime

Instead of waiting for devices to recharge, this system runs on 2 AA batteries for quick replacement when power runs low. The transmitter can operate for more than 8 hours, while the receiver lasts up to 10 hours. For all-day meetings, mobile events, and back-to-back sessions, that means less downtime, simpler prep, and an easier backup plan.

Key Features at a Glance

• 

  Lightweight Enough for All-Day Use

  Heavy devices can become uncomfortable during long events. At just 3.2 oz (90 g) each, the transmitter and receiver are easy to wear on a lanyard or carry in a pocket throughout the day.

• 

  Clear LCD Display for Faster On-Site Management

  The built-in LCD screen clearly shows channel, battery status, and volume, so staff and users can check device status at a glance.

• 

  Better Listening Quality for Spoken Translation

  The AUX interface supports stereo audio input, and the included dual earphones are tuned to work well with TT118 receivers for clearer voice reproduction.

• 

  9 Volume Levels for Different Hearing Needs

  With 9 adjustable volume levels, attendees can set a comfortable listening level based on the room, headphones, and personal preference.

• 

  Mute and Lock Functions Help Avoid Disruptions

  One-touch mute makes quick control easy when needed, while lock mode helps prevent unwanted setting changes during active sessions.

• 

  Easy to Scale for Small Meetings or Large Groups

  One transmitter can work with an unlimited number of receivers, giving you the flexibility to expand as needed.

Simple Channel Switching for Guests, Visitors, and First-Time Users

Not every guest is comfortable with technical equipment—and they should not have to be. With a clean 5-button layout and dedicated channel up/down controls, users can switch between available language channels in seconds. This helps reduce staff support time at check-in, shortens setup confusion, and makes the listening experience much more approachable for first-time attendees.

Wireless Setup That Keeps Seating and Movement Flexible

Traditional interpretation systems can create unnecessary limitations with cables, installation requirements, and fixed seating layouts. This fully wireless system removes those barriers, making it easier to support temporary events, rental use, traveling teams, and venues that need a fast turnaround. Whether attendees are seated, standing, or moving between spaces, the system is designed to keep interpretation accessible without locking your event into a rigid room setup.

One Portable Solution for Multiple Multilingual Events

From conferences and worship services to classrooms and community gatherings, different environments require flexible communication solutions.

Retekess portable simultaneous interpretation systems help organizations deliver clear multilingual audio across various settings with quick setup and reliable performance. Whether for professional meetings, training sessions, or public events, one system provides the flexibility needed for effective communication anywhere.

Comfortable Headphones That Help Listeners Stay Focused

The included over-ear headphones help reduce outside distractions and improve focus on the translated audio. Soft foam padding supports longer wear, while the adjustable headband fits a wide range of users. With a standard 3.5 mm stereo plug, they are ready to use right out of the box.

Hands-Free Lavalier Microphone for Clear, Professional Delivery

The included lavalier microphone clips easily to clothing for hands-free use, helping maintain a more natural speaking posture while capturing clear voice audio. Its compact design also makes it practical for interpreters who need to stay mobile during tours, stage events, or training sessions.

Organized Storage for Faster Setup and Easier Transport

The included TT017 carry case keeps the transmitter, receivers, microphone, and headphones organized in separate compartments, helping your team pack faster, travel cleaner, and reduce setup stress on site.