- 6 Transmitters Can Be Used In 17 Channels
- 262 ft (80m) Stable Transmission Range
- Compact & Lightweight Portable Design
- Quick One-Click Mute Function
- Intuitive Channel/Language Switching
- Compatible with most 72-76 Mhz FM systems
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30-Day Money-Back Guarantee
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3-Year Warranty
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Secure Payments | SSL Encrypted
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Lifetime Customer Support
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Payment Methods
Description
The Retekess TT117 TT118 Simultaneous Interpretation System Provides superior sound quality and excellent coverage range,combining multiple-channel transmitter and receivers,as well as improved reliability and versatility.It can be expanded by adding an unlimited number of additional receivers.More foreign languages/ auditory sources can be added for a maximum of 6 in the same area.One key lock and mute function to meet your all kingds of needs.Available in 50-100-person packages and more.
Stable Signal, No Line of Sight Required
The system delivers uninterrupted interpretation across a stable 262ft (80m) range by operating on the reserved 72-76MHz conference FM band, which eliminates public radio interference. Since FM signals naturally penetrate walls and obstacles, no direct line of sight is needed, allowing interpreters to move freely in venues of any size. The result is crystal clear translation for every attendee—even in the back row—without a single dropout.
17-Channel System for Multilingual Translation
Retekess TT117 TT118 Simultaneous Interpretation system provides 17 selectable channels to support up to 6 different languages or interpreter teams operating at once in the same venue, free from crosstalk. It is engineered for demanding multilingual environments such as conferences and large-scale worship services.
Note: This system does not translate automatically. It can be used with a human interpreter.
Stereo Audio Input
The AUX interface supports stereo audio input with superior sound fidelity. It can connect to external audio sources, such as computers, mobile phones or other audio players.
Completely Wireless,Easy To Carry
Leave behind cumbersome gear. Built for mobility and long-lasting performance, this system is ready to use straight out of the box—no installation needed.
All-Day Operation with 2 AA Batteries
The compact FM interpretation system is powered by 2 AA batteries. With over 8 hours of operation for the transmitter and up to 10 hours for the receiver, battery replacement is quick and easy, keeping your interpretation going without the hassle of recharging.
User-Friendly Setup & Management
Designed for simplicity, this equipment is quick to set up and easy to manage, ensuring a smooth experience for both interpreters and audiences.
Noise-Canceling Over-Ear Headphones
The set includes dual earphones Allow to start listening right out of the box. The over-ear noise-canceling headphones provide clear translations with foam padding for comfort and noise isolation. The adjustable, extra-wide headband fits all head sizes. Designed to optimize audio quality, they come with a 3.5mm stereo plug for an immersive conference experience.
Hands-free Lavalier Microphone
This lapel microphone clips effortlessly onto your collar or other articles of clothing, ensuring a hands-free experience while capturing clear and professional sound.The Microphone’s design minimizes background noise, allowing Interpreter's voice to take center stage. Its compact size and lightweight construction make it comfortable for extended wear.
High Compatibility & Scalability
The system works with most 72-76 MHz FM systems, including popular models like Williams Sound transmitters (PPA T35, T27, T32, T36),ensuring compatibility with a wide range of your existing equipment.
Compact, Secure Transport Solution
This rugged carrying case is ideal for storing and carrying translation systems, featuring individual slots and accessory compartments to accommodate multiple TT117 and TT118 devices, as well as accessories such as microphones and headphones. The sturdy casing protects the translation headphones from accidental bumps or drops.
How Our Simultaneous Interpretation System Works
Our simultaneous interpretation system consists of specialized equipment, such as portable transmitters and lapel microphones for interpreters, as well as receivers and headphones for listeners. Interpreters listen to the speaker through their headphones and deliver real-time translations via their microphones, while listeners hear the interpretation through receivers connected to their headphones.
Difference among Retekess systems:
| TT117 TT118 Ultra-Portable Medium Range Handheld System |
TT119 TT118 Longer Range Portable FM Systems |
|
| Transmitter type | Handheld | Table-top |
| Transmitter channels | 17 | 17 |
| Receivers channels | 17 | 17 |
| Power source | Battery operated transmitterand receivers | 10-240v AC powered transmitter and battery operated receivers |
| Range | 262 ft | 328 ft |
| Interpreter monitor | NO | YES |
| Max.receivers supported | Unlimited | Unlimited |
| Operating frequencies | 72-76 MHz | 72-76 MHz |
Seamless Translation for Every Event, Every Language
The Retekess TT117 TT118 Simultaneous Interpretation System Provides superior sound quality and excellent coverage range,combining multiple-channel transmitter and receivers,as well as improved reliability and versatility.It can be expanded by adding an unlimited number of additional receivers.More foreign languages/ auditory sources can be added for a maximum of 6 in the same area.One key lock and mute function to meet your all kingds of needs.Available in 50-100-person packages and more.
Stable Signal, No Line of Sight Required
The system delivers uninterrupted interpretation across a stable 262ft (80m) range by operating on the reserved 72-76MHz conference FM band, which eliminates public radio interference. Since FM signals naturally penetrate walls and obstacles, no direct line of sight is needed, allowing interpreters to move freely in venues of any size. The result is crystal clear translation for every attendee—even in the back row—without a single dropout.
17-Channel System for Multilingual Translation
Retekess TT117 TT118 Simultaneous Interpretation system provides 17 selectable channels to support up to 6 different languages or interpreter teams operating at once in the same venue, free from crosstalk. It is engineered for demanding multilingual environments such as conferences and large-scale worship services.
Note: This system does not translate automatically. It can be used with a human interpreter.
Stereo Audio Input
The AUX interface supports stereo audio input with superior sound fidelity. It can connect to external audio sources, such as computers, mobile phones or other audio players.
Completely Wireless,Easy To Carry
Leave behind cumbersome gear. Built for mobility and long-lasting performance, this system is ready to use straight out of the box—no installation needed.
All-Day Operation with 2 AA Batteries
The compact FM interpretation system is powered by 2 AA batteries. With over 8 hours of operation for the transmitter and up to 10 hours for the receiver, battery replacement is quick and easy, keeping your interpretation going without the hassle of recharging.
User-Friendly Setup & Management
Designed for simplicity, this equipment is quick to set up and easy to manage, ensuring a smooth experience for both interpreters and audiences.
Noise-Canceling Over-Ear Headphones
The set includes dual earphones Allow to start listening right out of the box. The over-ear noise-canceling headphones provide clear translations with foam padding for comfort and noise isolation. The adjustable, extra-wide headband fits all head sizes. Designed to optimize audio quality, they come with a 3.5mm stereo plug for an immersive conference experience.
Hands-free Lavalier Microphone
This lapel microphone clips effortlessly onto your collar or other articles of clothing, ensuring a hands-free experience while capturing clear and professional sound.The Microphone’s design minimizes background noise, allowing Interpreter's voice to take center stage. Its compact size and lightweight construction make it comfortable for extended wear.
High Compatibility & Scalability
The system works with most 72-76 MHz FM systems, including popular models like Williams Sound transmitters (PPA T35, T27, T32, T36),ensuring compatibility with a wide range of your existing equipment.
Compact, Secure Transport Solution
This rugged carrying case is ideal for storing and carrying translation systems, featuring individual slots and accessory compartments to accommodate multiple TT117 and TT118 devices, as well as accessories such as microphones and headphones. The sturdy casing protects the translation headphones from accidental bumps or drops.
How Our Simultaneous Interpretation System Works
Our simultaneous interpretation system consists of specialized equipment, such as portable transmitters and lapel microphones for interpreters, as well as receivers and headphones for listeners. Interpreters listen to the speaker through their headphones and deliver real-time translations via their microphones, while listeners hear the interpretation through receivers connected to their headphones.
Difference among Retekess systems:
| TT117 TT118 Ultra-Portable Medium Range Handheld System |
TT119 TT118 Longer Range Portable FM Systems |
|
| Transmitter type | Handheld | Table-top |
| Transmitter channels | 17 | 17 |
| Receivers channels | 17 | 17 |
| Power source | Battery operated transmitterand receivers | 10-240v AC powered transmitter and battery operated receivers |
| Range | 262 ft | 328 ft |
| Interpreter monitor | NO | YES |
| Max.receivers supported | Unlimited | Unlimited |
| Operating frequencies | 72-76 MHz | 72-76 MHz |
Seamless Translation for Every Event, Every Language
Spec
Package List
| Package | Package Include |
| 3TX-100RX-2 Bag-100 Headsets | Transmitter*3、Receiver*100、Lavalier Microphone*3、Single-ear headphone*100、 Over-ear Headphones*100、Lanyard*103、50-Slot Carry Bag*2 |
Specification of TT117 TT118 Interpretation Headsets
|
TT117 Transmitter |
TT118 Receiver |
|
|
Frequency range |
72-76MHz |
72-76MHz |
|
Channel |
17 channels |
17 channels |
|
Power supply |
2 AA batteries |
2 AA batteries |
|
Working hours |
8 hours |
10 hours |
|
working voltage |
3V |
3V |
|
Working range |
80 meters |
80 meters |
|
Size |
53*93.5*20mm |
53*93.5*20mm |
|
Weight |
90g |
90g |
Specification of TT017 50 Slot Carry Case
| Material | Nylon cloth wrapped with EVA |
| Size | 370*340*110mm/14.56*13.38*4.33 inch |
| Weight | 1890g |
FAQ
Q: How does the Retekess interpretation equipment work?
A: The picture below can help you understand how it works.
Q: Can Retekess Simultaneous Interpreting devices support multiple languages at the same time?
A: Yes, Retekess interpreting devices are capable of supporting multiple languages at the same time. Simply assign a different channel to each language.
Q: Do you offer technical support or assistance after purchase?
A: Absolutely! Our dedicated technical support team is available to help you with any queries or problems you may have with your Retekess interpreting device. Please feel free to email support@retekess.com and we'll be happy to help!
Q: Is this carry case only portable?
A: Not only can it be carried by hand, but you can also carry it over your shoulder through the included strap. The wide strap will not make you feel uncomfortable when carrying it.
Q: Which models is this carry case suitable for?
A: TT117,TT118,TT105, TT109,TT110, and TT122.
Q: What components are included in this kit? What is the exact quantity?
A: Click here to find out, or contact customer service directly for information.
Q: Can I purchase the transmitter/receiver/charging case separately?
A: Yes! We offer all components for individual sale. Please visit our "Accessories Center" page to find the components you need, or contact customer service directly for a separate quote.
Q: What is the warranty policy?
A: We offer a 3-year warranty. Free repairs will be provided during the warranty period.
Q: Do you offer demo testing? How do I apply?
A: Retekess.com offers free demo testing (a deposit is required). Please click "Demo Application," and our customer service will contact you within one business day to arrange shipping.
Q: How do I customize the quantity (e.g., 99 transmitters + 9999 receivers)?
A: Retekess.com supports customization of any quantity. Please click here to inform me of your desired model and the specific quantity needed. Large orders may also receive a surprise additional discount!🎁
Q: Can you customize my company logo? What are the logo size specifications? What is the minimum order quantity for customization?
A: Retekess.com supports tour guide system logo customization. However, the specifications and minimum order quantity may vary depending on the product model. Please click here to tell me the product model you wish to purchase so I can provide you with detailed information one-on-one.
Reviews
Customer Reviews
Marco Rossi
Dec 29, 2025
This system offers incredible value. It provides the critical features of high-end conference interpretation gear—clarity, multiple channels, robustness—without the complex infrastructure or hefty price tag. It democratizes quality simultaneous interpretation.
Anika Sharma
Dec 17, 2025
For a UN-side event, we needed reliable, standalone equipment. This system delivered. The dedicated frequency meant we weren't competing with the venue's packed wireless spectrum. Setup was quick, and sound quality was consistently professional.
Olivia Chen
Dec 11, 2025
As a technical director, I value reliability above all. These units are workhorses. The lockout switch ensures settings stay put once the session begins. We've used them for dozens of events, and they perform flawlessly every time.
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