ELECOM LBT-TWS11BK Bluetooth Earphones, ACC Compatible Elecom Wireless Earphones, Bluetooth 5, Lightweight, Small, In-Ear Type, Calling, Automatic Pairing, ACC Compatible, Type-C Charging, Black, LBT-TWS11BK These Bluetooth(R) wireless stereo headphones achieve an extremely small size both when worn and stored, thanks to an ergonomic design that fits the shape of the ear, a minimalist size, and an ultra-lightweight design. These are from FASTMUSIC(TM), an entry-level label with the theme of "cute, fun, and colorful," allowing you to easily experience "surprisingly good sound." The headphones can be used with only one side. (Turn off the other headphone or store it in the charging case). They reduce the worry of the headphones falling out, allowing you to enjoy music comfortably. They achieve a high level of fit regardless of the size or shape of your ears. With ultra-small headphones weighing only about 3.4g each and an ultra-small charging case that fits in your hand, they won't get in the way when worn or carried. ⚠︎Caution⚠︎ We will ship with waterproof measures. Please refrain from purchasing if you are overly concerned about details. #LBT-TWS11BK Bluetooth