Kandar KD-S21 DayNight Earphones, Compact, Painless Wireless Bluetooth Earbuds for Sleeping, Mini Size, Ultra-Compact, In-Ear, Separate Left and

[Small and Thin for Comfortable Wearing] 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 Design for a Perfect Fit, Even for Long Wearing] The earphones are designed to fit the shape of your ear, providing a natural fit that feels as if they're one with your ear. They won't hurt your ears, even when worn for long periods of time. [Three-Point Support] Utilizing the ear's structure, the earphones are firmly fixed in place with the resilience of the skin at three points inside the ear. They're as stable as a tripod and won't fall out, even during exercise. [Eliminating the Sensation of a Foreign Body in the Ear] Instead of the traditional in-ear style, which offers high stability but can feel constricting, we've chosen an in-ear design that's gentle on the ears. We measured the ear shapes of a total of 1,000 people to create the perfect curve for the human ear. They feel natural when inserted and offer an excellent fit. Even wearing them for long periods of time as sleeping headphones won't cause fatigue. [Equipped with Bluetooth 5.3 chip] The earphones are equipped with a built-in 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.