This white Biofeedback device is a Vintage model (HR001.1) designed for biofeedback training. It is manufactured by the brand Healing Rhythms and has a user-friendly interface in English. This biofeedback device allows users to monitor their body's responses to various stimuli and provides feedback to help improve overall health and well-being. Perfect for individuals looking to enhance their workout routines and optimize their physical performance. Also perfect for those with anxiety, chronic pain, and chronic or general fatigue. Biofeedbavk helped me when I had tried literally everything else on earth.