Product Description FIT FOR SLEEPING WITH PROBLEM: The headphones mask adopted 3D ERGONOMIC TECHNOLOGY for eyes area and block out 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 5.0 STEREO SOUND: Featuring Updated BLUETOOTH 5.0 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 eye mask by hand with warm water. ULTRA SOFT: Sleep headphones bluetooth sleep mask is designed with breathable material and comfortable feel, breathable slow-rebound memory sponge and smooth fabric let you release your facial stress and help get into sleep rapidly. Specification: Material: Nylon + Memory Foam Charge Time: 1.5 hours Play Time: 10 hours Package Included: 1 x Bluetooth Sleep Eye Mask Note: 1. Due to the different monitor and lighting effect, the actual color of the item may be slightly different from the color shown on the pictures. 2. Please allow 1-3cm error due to manual measurement. (1 inch = 2.54 cm)Thanks for your support :)