Both the transmitter and receiver have 1-10 levels of volume. Users can adjust the volume according to their needs. The transmitter and receiver can work continuously for 12 hours and 18 hours respectively. The receiver automatically synchronizes and locks; and long press "-" to unlock.
Transmitter has an aux jack, which can be connected to external device(such as church PA system soundboard). Just send audio from an auxiliary output on the soundboard, and plug it into the audio input of the transmitter. One transmitter can work with multiple transmitters; Multiple guide groups can be allowed to give different explanations on the same occasion.
You can use TT122 to participate in simultaneous handover meetings to achieve real-time translation. The microphone line and the earphone line are wrapped with tough materials, which is not easy to break.
Built-in line can make sound transmission better.