【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. Achieves long-term wireless listening of up to 8 hours In consideration of sound leakage, the housing structure has small holes to adjust the amount of air ventilation. This suppresses the emission of mid- and high-frequency sounds to the outside, which is a particular concern due to sound leakage. Easily operate players such as smartphones on your neck. By operating the buttons on the cable, you can forward/return songs, play/pause, and adjust the volume on music playback devices such as smartphones that are connected to Bluetooth. High sound quality even wirelessly, supports AAC in addition to SBC. Music encoded with AAC can also be played with high quality on iPhones with iOS 4.3.1 or later. Without taking out your smartphone, you can make calls, play music, and even check things like the weather forecast using the headphones and voice controls. Equipped with one-touch connection (NFC) function Hands-free calls are also possible with Bluetooth-enabled smartphones, iPhones, and mobile phones. Supports multi-pairing that allows you to pair with up to 8 devices. Once you pair it with a frequently used device, it will be easy to connect Bluetooth from the second time onwards. With remote control Continuous music playback time: up to 8 hours