18KHz. Operating Temperature: -20 ～ 50 ℃. Dimensions: 193x151.5 x292mm. Network Column Audio Speaker GEN-6191A03 Power Supply: DC24V/1A or POE. Interaction Method: TCP/IP, UDP, SIP. Signal-to-Noise Ratio: > 90dB. Regularity Reaction: IP Paging System 45Hz
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