Do I need to use headphones when listening to the mp3s and cds?
Stereo headphones are recommended for best results. With cheap earphones you won’t be able to here the binaural beats or isochronic tones (especially in the low frequencies), and the music may end up sounding mono if you don’t use stereo headphones. You can test your headphones (listen for the low frequencies) by listening to the free samples. Headphones within the $10 – $20 range will work just fine. Sessions with binaural beats always require headphones because binaural beats are created by the brain when a different tone is played in each ear. Sessions with isochronic tones don’t require headphones if you have a good speaker system. But headphones are recommended for best results. Optionally you can just use the mp3’s as soothing background music if you don’t want to use headphones for therapeutic purposes.
