Cranial electrotherapy stimulation (CES) is designed to help you find relief from conditions like depression, anxiety, and insomnia by altering electrical activity in your cells.
CES devices are connected via wires to two small electrodes. When you use a CES device, you connect the electrodes to your earlobes, and then you turn on the device for treatment sessions ranging from 20 to 60 minutes per day. The electrodes send precise electrical currents into your body in a way that is intended to help you feel better.
Further Reading:
Is Cranial Electrotherapy Stimulation (CES) Right for You?