Cart Remove item Thumbnail image Product Price Quantity Subtotal × Digestion $29.00 Digestion quantity $29.00 × tVNS Research Device $549.00 tVNS Research Device quantity $549.00 Update cart Cart totals Subtotal $578.00 Shipping Free shipping Flat rate: $8.89 Shipping to United States (US). Total $578.00 Proceed to checkout