double beep

I have a floodlight cam that's the wired version. I have been woken up in the middle of the night with the floodlight cam sounding an intermittent double beep. Last night at 3am I went outside to confirm it's the camera, there was no motion alerts going off no reason for it to be beeping. It's very loud and I'm sure my neighbors are probably wondering as well. Anyone having this issue or know why and how to stop it? Also is there a way to control the volume on the speaker?