3D Contoured Bluetooth Eye Mask:Based on ergonomics Design sleep headphones bluetooth sleep mask is perfect for our face.The contours of the eyes area are deeper and your eyes can move freely. Zero pressure on eyes, With adjustable strap the bluetooth sleep mask fits all size head, easy to adjust and not catch hair.Best sleep headphones for side sleeper Design:Sleep headphones bluetooth sleep mask is designed with breathable material and comfortable feel,sleeping headphones mask use memory foam materials and super soft fabric,soft fabric let you release your facial stress and help get into sleep rapidly. Bluetooth control on the middle and is perfectly fit for side sleeper. Fit for Sleeping With Problem :The Sleep headphones mask adopted 3D ergonomics technology for eyes area and block out 100% of light to create absolute dark zone and listen to music without wearing additional headphones for you sweet deep sleep, great solution to the problem sleeper. Perfect for home, office, air travel, business strip, relaxation, mediation and insomnia. Bluetooth Stereo Sound: Featuring Updated bluetooth technology, stable connectivity and smooth transmission in high speed and long distance with low consumption for great stereo sound experience. Built-in adjustable high quality speaker and microphone for handfree and clear call. Sleeping mask can be WASHABLE you can take out the bluetooth moudle and wires out. Recommend to wash the mask by hand with warm water. Play Time:Built-in the premium high-performance battery Charge about 2-2.5 hours, provide more than 10 hours playing time, won’t be waked up at night, You can sleep peacefully all night. Sleep Headphones,Bluetooth 5.2 3D Sleep Mask Wireless Music Block Out Light Eye Mask for Side Sleepers Men Women