Sound has long been used as a tool for shifting mood and mindset. Solfeggio frequencies are a set of seven specific tones, traditionally used in ancient sound healing practices for centuries. Each frequency is thought to relate to a different feeling or state of mind, from grounding and calm through to clarity, connection, and peace. The Aroma-Frequency Diffuser has these custom seven tones built in, so you can pair sound with scent in the one device. No speaker, no app, no searching for a track online. Just choose the frequency that matches how you want to feel, add your favourite essential oil, and let the two work together. You can hear a short preview of each of the 7 frequencies in the "Full Walk Through" accordion below. These 7 Solfeggio Frequencies were each composed exclusively for Lively Living. The seven tones 396Hz, Grounding 417Hz, Reset 528Hz, Open Heart 639Hz, Connection 741Hz, Inner Truth 852Hz, Intuition 963Hz, Peace The Aroma-Frequency Diffuser also has a light. The first setting is a gentle orange light setting that is calming and is known to support relaxation and sleep. There is a colour changing light option that will cycle gently or you can select and set a favourite colour.