18KHz.
Intercom: Sustained, Built-in Microphone.
Running Temperature level: -20 ～ 50 ℃.
Dimensions: 283.1 * 224.3 * 269mm.
Network Ceiling Speaker GEN-6211A03
Power Supply: DC 24V/1A or POE.
Interaction Protocols: TCP/IP, UDP, SIP, ONVIF.
Signal-to-Noise IP Paging Microphone Proportion: > 80dB.
Regularity Feedback: 100Hz