The Sounds of Nature is a type of baby soother come mobile. It plays soft tunes etc, but instead of hanging over the cot, it clips onto the side (looks like a white box). It can be programmed so that when it senses that your baby is crying or making noise, it starts playing either the soft tunes, a heartbeat, the noise of rain or the noise of the ocean (waves). A mate of mine bought one and said they are great. It also has a night light on the back of it. Please let me know if there are any on here for sale as I am due in 2 weeks and would love one for the baby. Thanks very much in advance :)