Xen by Neuvana (vagus nerve)

We designed Xen to improve your quality-of-life. Stimulate your vagus nerve to enhance sleep, boost mood, improve focus, and knock-out stress for good. The all-in-one bundle has everything you need to start out strong. Details All you need is a compatible mobile device to sync (iPhone®/iPad®/iPod touch® with iOS® 11 or later; Android® device with OS 6 or later), and you're good to go. Box Set weight: 1.4 lbs Battery capacity: 900 mAh, 3.