【Sleep Headphones / Sleep Earphones / ASMR Earphones】Wired earphones with a double noise-canceling earphone design, utilizing the principle of physical noise reduction. They fit the outer ear canal to block sound and the inner ear canal to deliver sound. They feature high-quality stereo sound with a 6mm unit and an integrated chamber structure, beautifully expressing deep, rich bass and clear, extended highs without sharpness. The result is pleasant, natural sound. 【Ultra-Comfortable, No Ear Pain】Ultra-small and ultra-comfortable, made of soft, squishy silicone. They won't hurt your ears even when sleeping on your side, allowing you to sleep soundly until morning. They fit perfectly in the ear canal, allowing you to sleep freely without feeling uncomfortable pressure. Comfortable even for long periods! Effectively blocks surrounding noise during sleep, travel, study, work, and on subways, airplanes, trains, and buses. 【Ultra-Small Design, Fits Snugly in the Ear】Wired earphones with an ultra-small in-ear design that doesn't put pressure on the ears even when lying down. They hide in your ear, are small, and weigh only 12g, making them easier to carry! The 15mm body is easy to use even for people with small ear canals and fits snugly in the ears of many people, regardless of gender. 【HIFI Unit Moving Coil Speaker】Adopts a powerful and ultra-thin graphene diaphragm to improve sound resolution and provide high-fidelity sound quality. A team specializing in sleep scene optimization has tuned them for low frequencies, smooth mid-range frequencies, and clear high frequencies. High-purity copper core wire, flexible and durable, anti-tangle, pure sound delivery, and enhanced noise filtering. 【Wide Compatibility】1.2m cord length. Compatible with desktops, mobile phones, MP3, MP4, iPhone, Samsung, LG, iPod, iPad, etc. Compatible with all audio devices with a 3.5mm headphone jack. *Note: iPhone 7 and later models require a separate Lightning to 3.5mm jack adapter cable.