Bose Ultra Earbuds Alternative Sizing Kit Black QuietComfort®

【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. Securely secures your earphones for a perfect fit. This alternative sizing kit includes ear tips in XS and XL sizes and a stability band perfect for those with larger-than-normal ears. Available in three colors: black, white smoke, and moonstone blue.