Wireless Earphones ---- Ergonomically designed miniature earphones that fit snugly in your ears. If you like to sleep with headphones and don't like the feeling of a foreign body in your ear, if you sleep on your side, then these safety headphones are perfect for you. ----Wireless bluetooth earphones measure less than 1 cm/0.4 inches, and each safety earphone weighs only 0.08 oz. Sleeping on your side won't squeeze your ears, and the U-shaped rubber skin-friendly ear cups keep the headphones in place all day long. Dual Noise Cancellation Technology ----Excellent body noise reduction combined with acoustic noise reduction technology, so you can enjoy a quiet sleep time without snoring and baby noise. The WalHle Stereo Surround for high-quality audio enjoyment is the perfect sleep companion. Flash charging extends life up to 24 hours, and charging case extends that to 480 hours. With a built-in microphone, you can easily stop between music, answer calls, or track music without taking out your phone. Bluetooth 5.3 and Fast, Stable Connection ---- High Quality5. 3 bluetooth chipset provides stronger signal and faster connection, compatible with almost all bluetooth-enabled devices up to a distance of 15 meters. Drop-resistant and IPX5 waterproof with Cochlea plants securely attached to earhooks for long-term wearing comfort.