Used only three times, it's practically new. "sleeposol Plus" is a wearable device that is worn on the head and emits a weak electrical stimulation called CES technology (*). It supports a comfortable sleep environment with weak electrical currents tailored to the usage scene, such as concentration mode and sleep mode. You can select from four modes: sleep mode, concentration mode, stress relief mode, and healing mode. * CES Technology This is a new technology that supports mental and physical relaxation and the regulation of brain waves by applying a weak electrical current to the head using CES (Cranial Electrotherapy Stimulation) technology. It aims to promote comfortable sleep by stimulating brain waves with a harmless, minute electrical current. The weak electrical current emitted by the CES device stimulates specific brainwave states (e.g., alpha waves and theta waves), guiding the user's brainwaves into a relaxed state or a state conducive to falling asleep. Furthermore, you can use the dedicated "sleepisol" app to conveniently configure detailed product settings and view usage history information. 【Set Contents】 Product Name: sleepisol Plus Power Supply: 5.0V 70mA Manufacturer/Country of Manufacture: Republic of Korea Weight: 28g Size: W134.3 x D16.6 x H166.8 Main Unit: 1 Charging Cable: 1 (USB cable: Type-C) Color: White Includes instruction manual (Japanese) Retail Price: 34,000 yen * The charging outlet is not included. Thank you for viewing.