18KHz.
Intercom: Sustained, Integrated Microphone.
Operating Temperature: -20 ～ 50 ℃.
Measurements: 283.1 * 224.3 * 269mm.
Network Ceiling Audio Speaker GEN-6211A03
Power IP PA System Supply: DC 24V/1A or POE.
Communication Procedures: TCP/IP, UDP, SIP, ONVIF.
Signal-to-Noise Proportion: > 80dB.
Regularity Reaction: 100Hz