Wired 2k Doorbell Audio interference

I keep losing audio about once per day, it turns into this horrible buzzing interference noise. The audio returns after a restart but the noise comes back within the next 24 hours. Ive had the unit a few months now. Is it defective? Anyone else experienced this? Video example: http://imgur.com/a/XDKLzfg

That’s definitely a weird sound, hope the mods can help you out with this problem