18KHz. Running Temperature: -10 ～ 55 ℃. Measurements: 296x140x130mm. Network Audio Bridge GEN-3101A01 Power Supply: POE. Interaction Method: TCP/IP, UDP, SIP. Signal-to-Noise Ratio: > 85dB. Frequency Action: 50Hz https://soundbar32087.blog-ezine.com/30100452/just-how-an-ip-paging-system-improves-emergency-situation-response-in-workplaces