MOSTOP Sleep Headphones Velvet Music Eye Mask Wireless Bluetooth Headsets for Sleeping/Relaxation/Air Travel/Meditation/Insomnia (Gray) Bluetooth wireless stereo music eye mask, it can connect to the mobile phone which support. Perfect for traveling, it is the best for the frequent flyers to sleep on long flights. You can enjoy your favorite music and hands free answering the phone call while you are sleeping on the flight, and never miss the call. it is also the best protection and relaxation for your eyes when you sleep at home blocking from the light. Handsfree speaker that proving you the best relaxation for your eyes and will also allow you to listen to music while having the rest if you do not want the disturb from around. You can easily adjust volume, redial the last phone number you called and control your tracks play/pause/Previous song/Next Song. Set-in Li-ion chargeable battery, charge via USB Cable; With Built-in Removable headphones which can be pulled out from this eye mask if you would like to wash it as shown in picture! One Size Fits Most!