Digital IP network software(YY-9900) |
IP network broadcast industrial control host(YY-9901) |
IP network broadcast paging intercom microphone(YY-9905) |
IP network fire adjacent layer alarm matrix(YY-9906) |
IP network broadcast front terminal(YY-9908) |
Network speaker(YY-9921/9921G) |
Network one-way amplifier(YY-9907-9912-9918-9928-9938-9950-9965) |
Wall-mounted one-key help intercom terminal(YY-9922) |
Safe city outdoor help intercom terminal(YY-9928) |
Aluminium magnesium waterproof active sound column outside broadcasting(Y-9920-9940-9960) |
Large type waterproof active sound column(YY-9990-99120-99180 ) |