"When Neuvana launched their Xen stress-reducing earbuds earlier this year, they made quite the impression with the top tech reviewers in the world. The wellness device was designed by one of the top cardiac surgeons in the world and gently tones the vagus nerve (located in your ear) to improve your focus, help you sleep better, and reduce stress/anxiety. All you have to do is connect the earbuds to their smartphone app to start toning your vagus nerve while listening to your favorite music."