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automatic tour guide system 2 4g frequency
Selling leads
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... can play the pre-stored audio explanation in the device, trigger the explanation by entering the signal range, or use the transmitter for manual ...
2024-12-09 13:52:47
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...4g Frequency, Support Multi-Language Explanation The M7C is to guide through a specific voice explanation method, the audio tour guide equipment ...
2024-12-09 13:46:15
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