Together the C and G tuning forks create a “perfect fifth” when they are activated at the same time. These acoustic tuning forks are meant to be listened to, as opposed to the Otto tuning forks which are designed to be physically placed on the body. Within seconds of hearing the harmonizing notes you will notice how your mind and nervous system begin to settle, producing a profound sense of calm and focus. These are excellent tools to use at the start and end of your meditation practice to effortlessly bring your attention inwards.