The TT120 underwater communication system, with its excellent waterproof technology, ultra-stable signal, and convenient and easy-to-use design, effectively solves your communication problems during all kinds of activities on and off the water.

It consists of a transmitter and one or more pairs of headset receivers, with the speaker speaking through the transmitter and the listener listening clearly through the headset receivers. The kit can be flexibly expanded to include more receivers.

9 Channels

The waterproof wireless tour guide system allows 9 groups in the same area to use it simultaneously, and different groups can use different channels without interfering.

Comfortable and robust headset receiver

The receiver uses bone conduction so that the transmitted sound can be heard even if the headset is not in the ear, but outside the ear (earlobe to head contact). This is a completely safe method of transmitting sound that allows visitors to hear the speaker's voice while still being able to hear the sounds around them. Transmission is always perfect whether the receiver is below or above the waterline.

Wide communication range

This wireless audio guide system has a transmission range of up to 120 meters above the water surface and up to 50 meters in underwater environments of 1.5-2 meters.

Built-in lithium battery

Transmitter fully charged in 5 hours for 10 hours of operation; Receiver fully charged in 3 hours for 5 hours of operation.

Wearing style
The transmitter offers 2 wearing styles, you can hang the device on your belt via the clip or around your neck via the lanyard. The receiver features an ergonomic headset design for a perfect fit and comfort.

One-touch mute transmitter

Simply press the power button on the transmitter briefly to pause the audio transmission. This is useful in situations where the guide needs to communicate privately or take a short break. During the mute period, visitors will not hear any sound. Click the mute button again to return to voice transmission mode.

Magnetic charging

Both the transmitter and receiver use magnetic charging, which allows the charging head to be quickly and accurately aligned and connected to the charging port, easy to use, avoiding frequent insertion and removal of the interface wear and tear, poor contact.

User-friendly waterproof tour guide system:
- The underwater communication system is designed with large buttons to ensure easy pressing.
- The volume of the receiver is adjustable so that users with different hearing levels can hear commands clearly.
- The transmitter supports the connection of external audio devices that can be used to play pre-recorded instructional audio or background music to the receiver.

Multiple applications for wireless underwater communication systems