NOTE: PLEASE ASSURE YOU HAVE 5MP COMPATIBLE DVR Hikvision 5 MP Dome camera with inbuilt Audio Mic for voice recording Transmit audio over coaxial cable [PLEASE MAKE SURE YOUR DVR SUPPORTS COAXIAL AUDIO INPUT] EXIR 2.0: advanced infrared technology with 20 m IR distance; 4 in 1 (4 signals switchable TVI/AHD/CVI/CVBS) Included Components: Screws; Mounting Type: Embedded; Specific Uses For Product: Surveillance