Long transmission distance; interpretation system working distance 200 m/656ft; widely used for our guides; exhibition live explanation; sermon interpretation; church translation; court interpreting. Automatic locking; to prevent accidental touching or interference; the transmitter and receiver will automatically lock if they are not used for 30s; this ensures that channel settings are not accidentally changed or interrupted during interpretation. Long battery life; simultaneous interpretation equipment built-in 1000mAh lithium upgraded battery to more than 10 hours working; replaceable battery; even in an outdoor environment; no need to worry about battery exhaustion affecting work efficiency. One-touch mute ; the tour guide transmitter supports a one-touch mute function; when the court interpreter needs to talk privately or during an intermission; can short press the power button to pause the sound transmission. Noise reduction technology; tour guide system filters out background noise; ensuring that the audio transmitted to the listener is clear and easy to understand; a good assistive hearing devices for audiences; separate your audience from background noise.