Anker Soundcore C40i wireless waterproof to 21 hours of Metallic gray (Bluetooth 5.4) [Open-ear earphones/ear cuff/IPX4 standard/up

【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. Ear cuff type for a comfortable fit that doesn't block your ears: A new earphone that clips into your ear and can be used like an accessory. You can easily enjoy music anywhere while reducing stuffiness and listening fatigue. A stable fit thanks to the flexible bridge that is easy to wear: If you use the included ear cuff caps, you can get even more stability, even when you move your body or sweat. Large driver for clear sound: A large 12mm x 17mm driver provides powerful deep bass. Delivers clear sound. Intuitive button control: Adopts button control. This prevents malfunctions even if your hand hits it while exercising or moving. Package contents: Soundcore C40i, charging case, ear cuff cap (2 types), USB-C & USB-A cable  /