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. Flexible ear hooks provide a soft fit and stability that prevents them from falling out of your ears. In addition, the earphone itself weighs approximately 6.9g (one ear), and although it is a hook type, it has a compact shape that easily fits in your ear. Up to 7.5 hours*1 of continuous playback with the main unit alone, and a total of up to 30 hours*1 of long-term playback by fully charging with the charging case (up to 7.5 hours*1 x 3 times). *1: Varies depending on usage conditions. Waterproof specification that is resistant to sweat and rain equivalent to IPX5, which can be used outdoors and during sports *2 *2: Equivalent to JIS protection grade 5 (IPX5). Compatible only with the earphone itself. In addition to standard earpieces with excellent sound isolation, low-noise isolation earpieces are also included (3 sizes each) to ensure safety when used outdoors, such as when jogging, and make it easier to hear surrounding sounds. It is convenient because it makes it easy to hear surrounding sounds when using it for telework or online conference calls. The high-quality sound driver unit uses high-strength neodymium magnets to deliver powerful, clear sound with a well-balanced range from low to high frequencies. It also has three sound modes: NORMAL/BASS/CLEAR. You can enjoy switching the sound mode according to the song or mood.