CRONY YK500-1F Wireless Calling System CY8800 although the illuminating light of

although the illuminating light of the galvanometer lamp is stable

Wireless acoustic microphone

Set Contains:

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CRONY YK500-1F Wireless Calling System CY8800 although the illuminating light ofYK500 1F Wireless Calling System Detailed instruction This is 500 meters transmitter. It works with 99 channel receivers, which have learning code and fixed code two different models. This kind of transmitter can be put on the table or stick on the wall. When the customers need service, he she just press the button, the receiver will receive a RF signal and know which table or room needs service. Wireless Calling System is a kind of electronic product