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. [Cutting-edge air conduction technology & ENC noise canceling] Earaku earphones use air conduction technology that allows you to naturally hear surrounding sounds without blocking your ears. It provides a sense of security and comfort while increasing the freedom of calls. The ENC noise reduction function suppresses environmental sounds and delivers human voices clearly. Call headsets reduce keyboard noise and air conditioning noise during meetings, making them useful in a variety of situations such as telework, online classes, warehouse work, and driving. [10 hours of continuous playback & compatible with a wide range of situations] The wireless earphones have built-in high-performance lithium and can be used continuously for up to 10 hours with 2 hours of charging. With a single full charge, you can use it on the go, make calls, and play music for long periods of time. You can use it with confidence even when suddenly commuting to work or school, online meetings, telework, web conferences, working from home, playing games, exercising, or while traveling. [Bluetooth 5.2 & IPX5 waterproof and stable connection] The open ear Bluetooth earphones are equipped with the latest Bluetooth 5.2+EDR technology, which improves audio and video synchronization and provides a stable connection. Free movement is possible with a communication range of up to 10 meters. The earphone microphone has IPX5 waterproof specifications, so it can be used in a wide range of situations, from business situations to daily use. [Ultra-lightweight 32g & 270° adjustable microphone boom] Earaku earphones that won't block your ears are lightweight at only 32g, so they won't compromise on comfort even when worn for long periods of time. Made of high quality soft silicone material, it fits snugly without any discomfort even when used for a long time. The microphone boom is 9cm long and can rotate 270°. You can adjust it to your mouth when making a call or behind your ear when playing music, allowing you to use it according to your needs. It is also highly portable and convenient when you go out. [Multi-functional physical buttons & reliable manufacturer's warranty] Intuitive operation is possible with physical buttons. You can easily answer/end a call, adjust the volume, forward/backward a song, activate Siri, mute, etc. with one button. You can enjoy music safely while listening...