18KHz. Operating Temperature: -20 to 50 ° C. Dimensions: φ213 x 165mm. Network Wall Mount Audio Speaker GEN-6011A03 Power Supply: DC24V/1A or POE. Interaction Method: TCP/IP, UDP, SIP, ONVIF. Signal-to-Noise Proportion: > 80dB. Regularity Action: 100Hz https://donovanfcwti.myparisblog.com/30496782/spon-communications-blazing-a-trail-in-cutting-edge-ip-pa-system-designs