Features: 2-in-1 BT eye mask and headset: It is not only an eye mask for blocking light, but also a wireless headset that can make hands-free calls and music wirelessly. Very practical for travel or home use. Headphones with Stereo Sound: Features BT 5.0 technology and Binaural stereo sound design that produce incredible sound quality. The wireless sleep eye mask/headphone can connect with the BT-enabled smartphone or tablet devices within 10 meters. Super Comfortable Eye Mask: This eye mask designed with a soft nose piece on the inner side which effectively prevents light from entering and provides a completely dark environment for light sleepers. A large space brings zero pressure to your eyes. Premium fabric provides you with the best user experience, so you won\'t feel uncomfortable even if you wear it for a long time. Long Working Time: Built-in the premium battery, charge 2 hours, provide about 10 hours playing time. You can enjoy the music and sleep peacefully all night. Adjustable Washable: Sleep eye mask\'s sticky strap can be adjusted according to the size of the head. BT music eye mask can be washed, simply remove the control panel and electronic components.