【Size】 250x90x25mm (including cover) 【3-Level Temperature Adjustment Function】 Easy operation with one button. Adjustable in 3 levels: 48°C (high), 44°C (medium), and 35°C (low). Using graphene material with excellent thermal conductivity and heat retention, you can feel a pleasant warmth in about 3 seconds after turning on the power. For an exquisitely relaxing time. 【High-Quality 100% Silk】 The main body cover that touches the sensitive eye area uses 100% of 22-momme high-quality silk. It excels in all aspects of touch, durability, breathability, and light-blocking properties, gently enveloping the eyes. 【Hand Washable for Cleanliness】 The silk cover is hand washable. You can keep it hygienic and clean even after repeated use. 【Ultra-Lightweight】 The main body weighs only about 65g. It achieves a comfortable feel that does not interfere with sleep with a light fit. 【30-Minute Automatic Power Off】 A safe design to prevent overuse. The power automatically turns off after 30 minutes, so you don't have to worry even if you fall asleep. Also prevents overheating and low-temperature burns. 【Commitment to a Good Night's Sleep】 Easy adjustment with the adjuster and a soft rubber band that won't hurt your ears provide a comfortable fit. Cordless and silent design allows you to use it easily anywhere. A dedicated case is included, so you can easily carry it with you while traveling or on business trips, on airplanes, or trains. 【How to Use】 ① Press and hold the power button for about 3 seconds. ② Press the power button briefly to switch to your desired temperature setting. ③ The power will automatically turn off after 30 minutes. * You can also turn off the power manually. 【Charging Time】 Approximately 2 hours (when using a DC5V2A AC adapter). * An AC adapter is not included, so please use your own AC adapter or USB port. * When charging for the first time or after not using it for a long time, the charging time and usage time may differ significantly from the estimate, but it usually returns to normal after repeating charging and use several times. 【Contents】 Main body, cover, USB charging cord, storage case, Japanese instruction manual (with warranty) * An AC adapter is not included with this product. * Output value: Please use a DC5V2A equivalent. * If the product breaks down due to using an output value exceeding DC5V2A, it will not be covered by the warranty even within the warranty period. * Always use the included charging cable when charging. You cannot use it while charging.