New and unopened. I am selling this because I accidentally purchased two. - Automatically records blood oxygen saturation (SpO₂), pulse, and body movement during sleep. - Manages data via Bluetooth connection with a smartphone and allows CSV output. - Dedicated app allows you to check graphs and trends of snoring and apnea. - Wrist-worn type, comfortable to wear, and ideal for measuring during sleep. [Condition] New, unused [Included items] All items included at the time of purchase (main unit, band, charging cable, instruction manual, box) [Shipping] Will ship anonymously within 24 hours (Mercari shipping).