The power adapter that came with my brand new PowerWave II wireless charger makes a pulsing buzzing sound. It’s not very loud, however, it is audible (and rather annoying) when the office is quiet. I’ve never owned a wireless charger before and I’m wondering if this sound is normal. I do own a few other Anker power bricks and none make anywhere near as much noise.
Is the adapter faulty? Should I return for refund/replacement?
Here is an audio recording: