Amazon.com : DS-2CD2143G2-IU 4MP IP Camera 2.8mm PoE Dome Camera with Audio Built-in Microphone 3-Axis IP67 IK10 H.265+ Support Firmware Upgrade, Compatible with Hikvision NVR, Hik-Connect App : Electronics
How-to: - How To Set Up Live View & Playback Audio on Hikvision Cameras | IP CCTV Forum for IP Video, network cameras & CCTV software