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【Voltage Compatibility】 When using electrical appliances, please note that they are designed for Japanese voltage specifications (90-110V), so if you use them with a different voltage, it may cause a malfunction.

【Plug Type】 Our products use Japanese plug types (A or B type). Please use a conversion adapter if necessary.

【Important Note on Transformers and Adapters】 A transformer adjusts voltage to match your device’s requirements. A conversion adapter only changes the plug shape and does not adjust voltage. Using only a conversion adapter without a transformer may result in damage to the product.

【Liability】 We are not responsible for malfunctions or damages caused by improper use, such as operating the product without a transformer.

[About clocks that synchronize time via radio waves] The function of clocks that synchronize time via radio waves only works in the Japanese area. Please be careful. Earphones for sleeping that won't hurt even if you lie down with them on. These sleeping headphones have a special shape designed for sleeping without sticking out of your ears. Discomfort, pain and goodbye. Perfect for you. I want to listen to music while lying down. I want to enjoy playing games on my smartphone while lying down. I don't want to put earphones deep into my ears. I want to reduce the discomfort when wearing it. Earphones come off easily. These sleeping headphones have a comfortable design and do not protrude from your ears. Specially shaped wireless earphones designed for comfortable sleep. Ultra lightweight and reduces burden. Ultra-thin design that fits snugly into your ear and won't pop out of your ear. Ultra-lightweight at only 2.5g, it prevents pain and the feeling of being stuck, and does not come off easily even when lying down. Built-in microphone. Calls are OK. Relax before bed with these sleep earphones. High quality and comfortable music listening. Delivering clear sound quality with reduced noise and abnormal sounds. Listen to music before bed to relieve the fatigue of the day and welcome a wonderful morning. Approximately 5 hours Compact yet impressive battery life! Enjoy long playback times with peace of mind, even during long calls and long distance travel. Continuous playback time approximately 5 hours. Earphone charging time and case charging time are approximately 1 hour. Type-C is hard to break and easy to insert. Stable charging unique to Type-C is possible. BLUETOOTH 5.4. Equipped with the latest version. Realizes faster pairing and more stable connection than ever before. This is the latest version with improved wireless connectivity. Perfect for carrying around. Light and compact. Ultra-lightweight earphones weighing approximately 3.5g (one ear) that are easy to carry and place less strain on your ears. [Can be used while sleeping] The latest wireless earphones with Bluetooth ver. 5.4. It doesn't hurt even when you lie down, and it doesn't come off easily! Displays remaining battery power on LCD. Comes with Type-C charging cable. Product details Bluetooth specifications ver5.4 Frequency spread method/frequency range GFSK/2.4GHz Transmission output/communication distance class2/10m Compatible profiles HFP, A2DP, AVRCP Built-in battery Lithium polymer battery 30mAh (earphones)/200mAh (case) Charging 5V/1A (USB charging/Type-C) Charging time 1 hour (can be charged approximately 300 times) (*A, B) Continuous use time 5 hours (*A) Size Approx. W2.5 x D1.2 x H2.5cm (Earphones) Approx. W5.7 x D4.5 x H2.5cm (Case) Weight 3.5g (Earphones)/25g (Case) Main material ABS Set contents 1.Charging case, 2.Earphones L, R, 3.USB charging cable (Type-C), 4.Japanese instruction manual (PDF/QR written on the back of the package) Notes (*A)...Varies depending on usage environment/(*B)...Built-in battery cannot be replaced