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】 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. #Does not apply to quick charging cables or quick charging adapters. (Chargeable products with QC mark cannot be used at all) [Stealth design & can be used for both left and right ears] The main body weighs only 3g, and the earphones are small in size and only (1.8 x 1.6 x 1.2) cm, making them small and difficult to find. Designed for both left and right ears, it can be worn comfortably. It's so comfortable to wear that you'll forget you're wearing it, and it won't put any strain on you even if you use it for a long time. You can enjoy hands-free music while driving, commuting to school, work, and exercising. [Rechargeable storage case included & IPX5 waterproof] Comes with a 260mah charging case that not only prevents your Bluetooth earphones from being lost, but also allows you to charge them repeatedly at the same time. Earphones can be charged 3 times. Enjoy 3 hours of continuous music playback/5 hours of continuous talk, and 150 hours of standby time. You can use it with confidence without worrying about running out of electricity. The earphone charging case is palm-sized and can be placed in your pocket. IPX5 waterproof protection grade equivalent to ``Daily Waterproof and Sweatproof'', protects earphones from sweat, splashes, rain, etc. Ideal for active scenes such as sports and exercise. Enjoy comfortable listening while exercising [Excellent Bluetooth 5.0 & Automatic Pairing] You can enjoy calls and music with clearer sound quality even wirelessly without getting tired. Experience an easy, fast and uninterrupted pairing connection. When you turn on the earphones, the earphones will automatically enter the Bluetooth pairing setting state. Connect to your smartphone and enjoy high-quality communication and music without waiting. When you restart the earphones, they will automatically connect to the last connected device. [One-button design & half-canal type] One-button design allows operation with one hand. All operations such as music play/pause, next song, call start/end/rejection/redial etc. can be realized with the on button. The half-canal type fits your ears...