Purchased on Amazon in 2025.10. Ultra-small earphones, mini size, ultra-lightweight 2g, skin color, inconspicuous, single-ear/dual-ear, left/right separation type, comfortable to wear while sleeping, wireless earphones, Bluetooth 5.4, Hi-Fi, built-in microphone, automatic pairing, compatible with iPhone/Android The sound quality isn't great, but they are compact and feel almost unnoticeable when sleeping (personal opinion). From the Amazon site: Brand: SZHTFX Color: Skin color Headphone type: In-ear Model name: YYK-Q40 Connectivity technology: Wireless About this product: 【Mini size & Inconspicuous】 Lightweight design, only 2g per ear, comfortable fit that conforms to the shape of the ear, providing a sense of unity, and a feeling of forgetting you're wearing them, so you won't feel burdened even after wearing them for a long time. They are about the size of a fingertip and skin-colored, so they are inconspicuous. 【Single-ear/Dual-ear mode freely switchable】 【Dual-ear >> Single-ear mode】 Simply put one earbud back in the case. The other earbud will continue to work without being affected. No need to reconnect. 【Single-ear >> Dual-ear mode】 When you take one earbud out of the case, it will automatically pair with the previously connected device. 【Ultra-small case included & Easy to carry】 Not only prevents loss, but also allows for repeated charging. Once charged, the earphones can be charged 2-3 times, making them useful for business trips and short trips. 【IPX5 Waterproof】 IPX5 waterproof protection grade, equivalent to "daily life waterproof and sweatproof" standards, protecting the earphones from sweat, splashes, and rain. 【Automatic pairing & Bluetooth 5.4】 Once the initial pairing is complete, simply take the earphones out of the charging case to connect automatically. Equipped with advanced Bluetooth 5.4+EDR wireless earphones, the signal becomes stronger, the transmission distance becomes longer, and it is compatible with iOS and Android. Furthermore, the faster data transmission speed reduces latency and noise. 【Sleep-friendly & Pain-free】 Usable in various situations. The discomfort when wearing them is reduced, and you won't feel tired even after wearing them for a long time. Can be used for sleep, running, listening to music, and various other scenarios. #WirelessEarphones