This is a prototype of Neuvana’s Xen auricular vagus-nerve stimulation device that was available on the IndieGogo crowdfunding site a few years ago. (They called this prototype “Nervana” but later changed the name to “Neuvana”.) Xen is designed to improve your quality-of-life. Stimulate your vagus nerve to enhance sleep, boost mood, improve focus, and knock-out stress This wearable device sends a gentle electrical wave through the left ear canal to stimulate the vagus nerve, while syncing with music. This elicits a calm, relaxed feeling for most users in a natural way, stimulating the brain’s pleasure center and releasing feel-good neurotransmitters. Visit https://neuvanalife.com to learn more about the benefits of and science behind vagus nerve stimulation. This Xen prototype sold for $289. The latest model of the Neuvana Xen starts at $449. This vagus nerve stimulator has been used but it is good working condition and includes the following parts and accessories. Included: - VNS device - electrode headphone (left electrode earbud only, right audio-only earbud has been removed) - four different sizes of earbuds - auxiliary cord for audio - neoprene carrying case - spray bottle for conduit - instruction manual and quick-start guide - battery From a smoke-free, pet-friendly home.