Our noise-cancelling sleep ear muffs are for students who need a quiet environment to study or sleep. These adjustable ear muffs are designed to provide maximum comfort and warmth, making them ideal for use in dormitories during the winter. The breathable material ensures that your ears stay warm without feeling stuffy, allowing you to on your tasks or enjoy a peaceful night's sleep. Features -Color:Black -Material:Flannel -Size:60.00X11.00X0.30cm/23.58X4.32X0.12in -Note: the style is random. -Warmth and noise reduction: these winter earmuffs are designed with added fleece to keep you warm and cozy, ensuring a comfortable sleep even in the coldest weather -Noise isolation: effectively blocks out noise, allowing you to rest peacefully in noisy environments, making them for dormitory use -Student friendly: ideal for students, these earmuffs provide a quiet and comfortable environment for studying and resting in dormitories -Outdoor versatility: for outdoor activities like running and cycling, these earmuffs protect your ears from cold winds and noise, enhancing your outdoor experience -Secure fit: designed to stay in place, these earmuffs offer a stable and comfortable fit, ensuring they won't slip off during physical activities Package list: 1 x sleep earmuff