Birdsong Concert lets you listen to the naturally relaxing sounds of morning birdsong, carefully recorded on location and bringing forth the true harmony of nature. The natural sounds are enriched with so-called 'binaural beats'. These added tones cannot be heard consciously but influence the brainwaves none-the-less. The effect is truly relaxing and eases you into a deep state of meditation. It is also a great sleep aid. For maximum effect, the use of headphones is recommended.