This article points to how to playback recordings with sound on different platforms. You may click the links below based on your need.
Applies to: All Reolink NVRs and cameras.
You may refer to the following articles to playback recorded videos with sound.
How to Playback Recordings with Sound on Reolink Client
How to Playback Recordings with Sound on Reolink App
How to Playback via PoE NVR (New UI)