TOA Powered Speaker Connected To Hikvision Camera - YouTube
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Hikvision IP Speaker User Manual
2022 Original Hikvision DS-2CD2386G2-ISU/SL Built-in Mic and Speaker 8MP 4K POE IR WDR 2.8mm Fixed Turret Network CCTV IP Camera,Support POE IR AcuSense Strobe Light and Audible Warning - Newegg.com