Soricle is a non-invasive neuromodulation device for insomnia and tinnitus, worn as wireless earbuds. It delivers bimodal stimulation: synchronized electrical stimulation of the auricular branch of the vagus nerve (ABVN) in both ears, combined with therapeutic acoustic stimulation, to modulate brainstem and autonomic networks. An in-ear photoplethysmography (PPG) sensor on the concha continuously measures heart rate variability (HRV) as an index of vagal tone; the companion App analyzes this signal and recommends personalized stimulation-intensity adjustments that the user applies. By combining bilateral vagus nerve stimulation, therapeutic sound, and HRV-guided personalization in one discreet wearable, Soricle enables self-guided, at-home treatment intended to reduce the daily burden of tinnitus and insomnia and improve patients' quality of life.