We offer a wide variety of products, and the following precautions apply to some of them. Please note that they are listed for all products. 【Voltage Compatibility】Designed for Japanese voltage (90-110V). Using with a different voltage may cause malfunction. 【Plug Type】Japanese plugs (A or B type). Use a conversion adapter if needed. 【Transformers & Adapters】Transformers adjust voltage; adapters only change plug shape. Using an adapter without a transformer may damage the product. 【Liability】We are not responsible for damages caused by improper use, such as using the product without a transformer. This is an open-ear Bluetooth headset that allows you to enjoy music and calls while listening to surrounding sounds. With IPX5 waterproof performance, it is resistant to rain, sweat, and water spray, making it ideal for use during exercise. Air conduction allows you to listen without covering your ears, so you can hear your surroundings and feel safe. Ideal for listening to music while running or doing housework. It is also comfortable to wear for long periods of time without making the insides of your ears stuffy. The ear hook part is soft and movable, so you can adjust the size to suit the size of your ears. Loosen it when you want to use it loosely, and narrow it for comfort when you are doing vigorous sports such as running. Equipped with a large 14.2mm driver, it reproduces powerful sound despite being an open type. Since it is operated using physical buttons, unlike touch sensors, it is less likely to be operated incorrectly. You can charge it by storing it in a charging case with a large capacity. *Earphones can only be charged using the charging case of this product. Please be careful not to lose it. The charging case has a remaining capacity display function, so you can check the remaining capacity at any time. Approximately 6.5 hours of continuous playback is possible, so you can use it with confidence even on the go. *Continuous playback time at 70% volume. Compatible with the latest Bluetooth 5.4 for stable connections. *Compatible with devices with Bluetooth 1.2 or higher. The design has less sound leakage, which is common with open ear models, and is easy to use in offices and cafes. *Sound leakage will always occur when used in a quiet place or when the volume is turned up. Equipped with a high-performance microphone that clearly transmits voice calls, it can be used for telework, web conferences, Zoom, LINE calls, etc. Equipped with ENC noise canceling, it reduces surrounding noise during calls. Warranty period: 6 months from the date of purchase Earphones that don't block your ears Open-ear earphones that don't block your ears Open-ear type Earphones for running Wireless earphones Recommended Open earphones that don't block your ears Open earphones that don't block your ears Open earphones that don't block your ears For people with small ears That don't block your ears Earphones that don't itch, ear cuff type, gym wireless, earphones...