../ I series NVR firmware/ 18-Apr-2023 13:50 - Speaker firmware/ 18-Apr-2023 13:50 - Hikvision-IP-Speaker-User-Manual.pdf 18-Apr-2023 13:31 3533501 How to link the IP speaker with NVR I series.pdf 18-Apr-2023 13:31 918628 IPSpeaker_Tool_V1.4.1.exe 18-Apr-2023 13:32 69756509 NAManager2(V3.3.1).zip 18-Apr-2023 13:31 1150466 RU_How to IP Speaker + HikCentral.pdf 26-Apr-2023 09:16 1101203