Description These noise-cancelling sleep ear muffs are great for students who need a quiet environment to study or sleep. Designed with adjustable features, they can be adjusted to fit any head size comfortably. The ear muffs are also lined with lint material, making them ideal for outdoor winter activities, providing both warmth and noise reduction. Features -Color:Beige -Material:Lint -Size:60.00X11.00X0.30cm/23.58X4.32X0.12in-Warm design: lined with lint material, these ear muffs effectively keep your ears warm, making them great for winter use.-Adjustable ear muffs: the ear muffs can be freely adjusted to fit your personal needs, providing a comfortable wearing experience.-Noise reduction function: effectively reduces external noise interference, helping to provide a quiet sleeping environment.-Multiscene use: suitable for indoor sleeping, studying, and working, as well as outdoor activities like running and traveling.-Ergonomic fit: designed to fit the shape of your ears comfortably, adhering to ergonomic principles to prevent slippingPackage list: 1 x earmuff