Tent has bird sounds playing at all times, it comes from the camera which is actually a baby monitor. There are also healing stones I picked up from a reputable shop in Madison, WI, Bernies Rock Shop (awesome people, highlight of my trip to Madison!). I included the rocks and sounds to provide a peaceful environment for the plants since like for all living beings, space comforts can really make a difference. There is a VivoSun thermometer/hygrometer in the corner so I can see stats from the baby monitor/camera app on my phone. The cardboard the camera is sitting on is just for height/visibility of the plants.