<p>This handheld sleep aid device utilizes Cranial Electrotherapy Stimulation (CES), an effective, drug-free and non-invasive physical method designed to promote sleep without causing dependency or side effects. It features 15 adjustable intensity levels and two different modes: Sleep Mode to relieve stress and anxiety and improve insomnia, and Excited Mode to improve focus and reduce depression. The device is made of ABS and stainless steel, has a 200mAh battery, and comes with a Type-C charging cable and instruction manual.</p>