I just received my Nexus 10. Everything about it is great except when I use headphone with it. If the tablet is plugged in/charging, and I am listening with headphones there is a lot of radio interference or something. The sounds seem to be related to the wifi radio, as they change in pitch and volume when the tablet is doing something. Although, the noise is there when no audio is playing and the tablet is idle. I have tried different headphones, tried moving the tablet to different outlets, and I tried a different charger. The noise is almost inaudible when the tablet is not plugged in/charging. Does anyone have any experience with this problem? I am thinking about returning the tablet, but I wanted to get some feedback from other users.