Kandar Day and Night Painless Wireless Bluetooth Earbuds for Mini Separate Left and Right Single or Both Compatible with iOS and Black KD-S21

【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. [Small and thin for a comfortable fit] The earphones themselves are an astonishing 3mm thick at their thinnest point! Their lightweight design means they feel comfortable even when lying on your back. Their exquisite thinness means they don't put pressure on your ears even when lying on your side. Their compact size ensures a comfortable fit. [Curved earbuds fit comfortably even for long periods of time] The curved earbuds are designed to fit the shape of your ears, so they feel natural and like they're one with your ears. Your ears won't hurt even when you wear them for long periods of time. [Three-point support] Utilizing the structure of the ear, the earphones are firmly fixed in place by the resilience of the skin at three points inside the ear. They are stable like a tripod and are designed to be difficult to fall off, even during exercise. [Eliminates the foreign body sensation of conventional in-ear headphones] Instead of the in-ear type, which is highly stable but feels oppressive, we have chosen an in-ear type that is gentle on the ears. We measured the ear shapes of a total of 1,000 people and created a curve that is optimal for the human ear. There is no foreign body sensation when you put them in, and they fit perfectly. You won't feel tired even when wearing them for long periods of time as sleep headphones. [Equipped with the latest Bluetooth 5.3 chip] The earphones are equipped with the latest Bluetooth 5.3 chip, which improves the stability of Bluetooth connections. Bluetooth 5.3 also has improved power saving performance compared to Bluetooth 5.2, making it more comfortable to use. These are in-ear type headphones for sleeping. Their mini size means they don't feel too constricting, and they deliver high quality sound despite their compact size.