Langder Wired Eye Mask Headphone Music Sleeping Eyemask 3.5mm Audio built in Speaker Plug and Play No Power required Soft Memory Foam Material Washable design Color Grey Comfortable,such Sleep Eye Mask is made of superior Velvet materail outside and the Memory Foam inside,with the high elasticity adjustable strap on the back,it can be fitted properly,suit for most heads.it Can protect and relax your eyes when you sleep blocking from the lightis,making you have a good sound sleep Perfect for sleeping during the traveling or at home or in the office,It is the best for people who is used by frequent flyers to sleep on long flights. You can enjoy your favorite music. Such Eye mask is easy to use,No Power required,plug and play.when you want to listen to music,just connect the plug right into iPod,MP3,smartphones. This Wired Eye Mask headphone,is buit in 2 speakers, HD Audio sound quality,enhance the bass and make you enjoy music freely. Washable,you can remove the inner memory foam and the speakers out from the Velvet coat,then only wash the out coat.when the coat is dried,input the foam with speakers into it , you can use it again .