Product combination:
1 transmitter + 10 receivers + 1 charging base (16-port)
1 transmitter + 15 receivers + 1 charging base (16-port)
Efficient charging!
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Description
Swim Coach Communicator TT120 Bulk Charging Solutions
This TT120 swim coach communicator combination includes 1 transmitter, 15 receivers, and a 16-port charging base. This charging base can charge 16 devices simultaneously, improving charging efficiency.
Efficient Multi-Device Charging
This charging dock can charge up to 16 devices simultaneously, ensuring they're always ready to go. This efficient, high-capacity charging solution saves time and simplifies your charging routine.
Multi-Channel Support:
The TT120 swim coach communicator supports up to 9 channels, providing instruction to nine training groups simultaneously, eliminating channel conflicts and ensuring each group clearly hears the instructor's instructions.
Waterproof Design:
The transmitter is IP54 waterproof, and the receiver is IP68 waterproof, suitable for aquatic environments, ensuring the device operates smoothly even in wet conditions.
Bone Conduction Headphones:
The receiver utilizes bone conduction technology for a comfortable fit. Weighing only 39 grams, it's ideal for extended wear and ensures trainees' comfort during training.
Long-Distance Transmission:
Transmission distances reach up to 120 meters above water and 50 meters underwater, making it suitable for large training venues and ensuring real-time communication between instructors and trainees.
Easy Operation and Long Battery Life:
The communicator system's operation is simple and intuitive, with a battery life of approximately 10 hours for the transmitter and approximately 5 hours for the receiver, making it suitable for extended training sessions and ensuring stable operation throughout the entire training session.
Swimming Training
During swimming training, the coach uses a TT120 wireless transmitter to transmit real-time voice guidance to the student's bone conduction headphones.
The coach can provide real-time guidance to the student, either poolside or in the water, providing personalized feedback for both technique correction and endurance training. For example, during freestyle training, a student might need to adjust the depth and width of their stroke. Through the headphones, the coach can precisely instruct the student on how to adjust their arm range of motion, helping them improve their swimming efficiency.
The student can hear the instructions clearly even while underwater.
Water Sports
At water sports clubs, coaches need to simultaneously guide multiple groups, covering kayaks, canoes, stand-up paddleboards (SUPs), and other sports. Traditional verbal instructions are easily obscured by wind and waves in open water, leading to communication difficulties.
The Retekess TT120 Swim Coach Communicator provides up to 9 channels of wireless communication, allowing coaches to provide real-time instruction to different groups from shore or onboard, ensuring that each group receives personalized feedback.
Water Park and Resort Activities
It is suitable for organizing group activities such as water yoga, water dance, and water fitness, ensuring that participants can clearly hear the instructions even in the water.
SPEC
|
Transmitter
|
|
|
Size |
260*50*23mm |
|
Weight |
158g |
|
Battery |
Li-ion Battery, Model: 123658, 3500mAh |
|
Nominal Battery Voltage |
3.7V |
|
Transmit Power |
50 nW max |
|
Signal-to-Noise Ratio |
63dB Stereo SNR |
|
Frequency |
97-101MHz |
|
Frequency Response Range |
40Hz-15KHz |
|
Number of Channels |
9CH |
|
Channel Spacing |
200KHz |
|
Distortion |
0.1% THD@STEREO, ∆f = 67.5 kHz |
|
Operating Time |
Approximately 10h |
|
Transmission Distance |
120m in the open water environment；50m in an underwater environment at depths of 1.5m to 2m； |
|
Charging Time |
Approximately 5h |
|
Waterproof Rating |
IP54 |
|
Receiver |
|
|
Size |
130*95*50mm |
|
Weight |
39g |
|
Frequency |
97-101MHz |
|
Battery |
Li-ion Battery, Model: 521333, 270mAh |
|
Nominal Battery Voltage |
3.7v |
|
Operating Time |
Approximately 5h |
|
Charging Time |
Approximately 3h |
|
Waterproof Rating |
IP68 |
Swim Coach Communicator TT120 Bulk Charging Solutions
This TT120 swim coach communicator combination includes 1 transmitter, 15 receivers, and a 16-port charging base. This charging base can charge 16 devices simultaneously, improving charging efficiency.
Efficient Multi-Device Charging
This charging dock can charge up to 16 devices simultaneously, ensuring they're always ready to go. This efficient, high-capacity charging solution saves time and simplifies your charging routine.
Multi-Channel Support:
The TT120 swim coach communicator supports up to 9 channels, providing instruction to nine training groups simultaneously, eliminating channel conflicts and ensuring each group clearly hears the instructor's instructions.
Waterproof Design:
The transmitter is IP54 waterproof, and the receiver is IP68 waterproof, suitable for aquatic environments, ensuring the device operates smoothly even in wet conditions.
Bone Conduction Headphones:
The receiver utilizes bone conduction technology for a comfortable fit. Weighing only 39 grams, it's ideal for extended wear and ensures trainees' comfort during training.
Long-Distance Transmission:
Transmission distances reach up to 120 meters above water and 50 meters underwater, making it suitable for large training venues and ensuring real-time communication between instructors and trainees.
Easy Operation and Long Battery Life:
The communicator system's operation is simple and intuitive, with a battery life of approximately 10 hours for the transmitter and approximately 5 hours for the receiver, making it suitable for extended training sessions and ensuring stable operation throughout the entire training session.
Swimming Training
During swimming training, the coach uses a TT120 wireless transmitter to transmit real-time voice guidance to the student's bone conduction headphones.
The coach can provide real-time guidance to the student, either poolside or in the water, providing personalized feedback for both technique correction and endurance training. For example, during freestyle training, a student might need to adjust the depth and width of their stroke. Through the headphones, the coach can precisely instruct the student on how to adjust their arm range of motion, helping them improve their swimming efficiency.
The student can hear the instructions clearly even while underwater.
Water Sports
At water sports clubs, coaches need to simultaneously guide multiple groups, covering kayaks, canoes, stand-up paddleboards (SUPs), and other sports. Traditional verbal instructions are easily obscured by wind and waves in open water, leading to communication difficulties.
The Retekess TT120 Swim Coach Communicator provides up to 9 channels of wireless communication, allowing coaches to provide real-time instruction to different groups from shore or onboard, ensuring that each group receives personalized feedback.
Water Park and Resort Activities
It is suitable for organizing group activities such as water yoga, water dance, and water fitness, ensuring that participants can clearly hear the instructions even in the water.
SPEC
|
Transmitter
|
|
|
Size |
260*50*23mm |
|
Weight |
158g |
|
Battery |
Li-ion Battery, Model: 123658, 3500mAh |
|
Nominal Battery Voltage |
3.7V |
|
Transmit Power |
50 nW max |
|
Signal-to-Noise Ratio |
63dB Stereo SNR |
|
Frequency |
97-101MHz |
|
Frequency Response Range |
40Hz-15KHz |
|
Number of Channels |
9CH |
|
Channel Spacing |
200KHz |
|
Distortion |
0.1% THD@STEREO, ∆f = 67.5 kHz |
|
Operating Time |
Approximately 10h |
|
Transmission Distance |
120m in the open water environment；50m in an underwater environment at depths of 1.5m to 2m； |
|
Charging Time |
Approximately 5h |
|
Waterproof Rating |
IP54 |
|
Receiver |
|
|
Size |
130*95*50mm |
|
Weight |
39g |
|
Frequency |
97-101MHz |
|
Battery |
Li-ion Battery, Model: 521333, 270mAh |
|
Nominal Battery Voltage |
3.7v |
|
Operating Time |
Approximately 5h |
|
Charging Time |
Approximately 3h |
|
Waterproof Rating |
IP68 |
Reviews
Customer Reviews
Swimming Team in Korea
Jan 24, 2026
The coach can send the messages to the team members clearly inside the water, and they can focus on training. The simple and strong functionality of the transmitter, transmission range inside the water and the durability satisfies the team can coaches. Especially the voice is crystal clear even inside the water.
Richard Otto
Jul 06, 2025
The TT120 greatly improved our water tourism experience, whether it was yachting, SUP surfing, or underwater activities, the communication was clear and stable, without any interference at all, which greatly enhanced the fun of the activities.
Carter
Jul 04, 2025
This device perfectly solves the inconveniences in my current swimming training process, such as poor communication. It can also teach multiple groups at the same time. Students do not feel any discomfort when wearing it. I will recommend it to other friends.
Joe Griffith
Jul 03, 2025
We used the TT120 system during sailing competitions and it performed very stably, with clear sound quality and no dropouts during long water activities.
Aaliyah
Jun 28, 2025
From coaches to students, it is very simple to turn on, pair, and switch channels. The coach can use it after 2 minutes of training, and the students can wear it and turn it on by themselves. There is no need for complicated settings, which saves time and effort.
Luke jessop
Jun 25, 2025
The tt120 receiver weighs only 39 grams, making it easy to carry and suitable for all kinds of outdoor and water activities. We really liked its lightness and comfort when sailing at sea.
Mason Carter
Jun 25, 2025
9 channels can support multiple training groups at the same time, and the team training does not interfere with each other, which is especially suitable for swimming training classes.
Jack
Jun 23, 2025
The most feared thing about listening to instructions underwater is the interference of water sound. This bone conduction transmits sound very clearly, students can hear every technical point clearly, and correct movements more accurately.
Hailey
Jun 23, 2025
The receiver is only 39 grams! After wearing it, you can hardly feel its existence, turning, pushing against the wall, and various swimming styles are completely unaffected. Children will not feel heavy or pressure on their heads when wearing it, and the training experience is greatly improved.
Alexander
Jun 22, 2025
The transmitter operation buttons are large and simple, which can guide underwater students in real time, with better teaching effects and rapid progress of students.
Gigi Bunnell
Jun 21, 2025
The receiver is waterproof to IP68 and can be used underwater for a long time; the transmitter is waterproof to IP54, so it is completely fine even if it accidentally falls into the water.
Zoey
Jun 19, 2025
We often have several classes at the same time in our swimming pool. In the past, coaches would talk to each other. TT120 has 9 channels. We have multiple groups taking classes together, each teaching their own, and the channels are independent and clear without interfering with each other.
Oliver James
Jun 19, 2025
The receiver is IP68 waterproof, so there is no need to worry about water ingress at all. Even training in deep water is stress-free and it is very safe to use.
Benjamin Scott
Jun 17, 2025
The transmitter has clear buttons and IP54 waterproof and splash-proof. It is very convenient for coaches to guide by the water without frequently debugging the equipment.
Isaac
Jun 16, 2025
In the past, training relied entirely on shouting, and students couldn't hear clearly when their voices were hoarse. Now with this interpreter, students' underwater instructions are directly transmitted to their ears (bone conduction), the sound is clear and does not affect others, the coach is relieved, the students are more focused, and the teaching efficiency is doubled.
Liam Thompson
Jun 15, 2025
The bone conduction receiver is only 39g, and you can hardly feel the weight when wearing it on your head. You won't feel tired even if you swim for a long time. The design is really user-friendly.
Rhiawna Bracci
Jun 13, 2025
As a competitive swim coach, I've tried every communication device out there. The TT120's bone conduction delivers crisp instructions even during flip turns. The 9-channel system lets me run separate drills for sprinters and distance swimmers simultaneously. Game-changer for my elite squad.
Grace
Jun 10, 2025
I recommend it to all my students, which effectively improves the teaching quality. I walk around the pool with the transmitter, and give instructions whenever I see a problem. Students can hear and adjust their movements in the water immediately.
John Johnson
Mar 01, 2025
There was a slight problem with the logistics, but everything else was fine
James Smith
Feb 27, 2025
Easy to operate, waterproof, clear sound
Ashley Taylor
Feb 23, 2025
I tried it out at first, but now I completely rely on it for my swimming lessons. The bone conduction earphones make communication easy, and I can give instructions no matter how intense the training is. It is also waterproof and has no problem at all. Highly recommended for all water sports enthusiasts!
William Thomas
Feb 18, 2025
As a swimming coach, I have significantly improved my training results after using this wireless communication system. The instructions are clearly communicated, even underwater. My students have given it great feedback, especially when they are training in a team, and they can better understand the movements. Most importantly, it is comfortable so I don't feel any discomfort during long-term use. I will report back here if anything happens, but so far, this actually works.
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