18KHz. Operating Temperature: -20 to 50 ° C. Capacities: φ213 x 165mm. Network Wall Mount Speaker GEN-6011A03 Power Supply: DC24V/1A or POE. Interaction Protocol: TCP/IP, UDP, SIP, ONVIF. Signal-to-Noise Proportion: > 80dB. Frequency Response: 100Hz https://surround-sound-system11119.blogthisbiz.com/36193662/enhance-your-interaction-with-an-advanced-ip-pa-system-today