ADVANCED BLUETOOTH 5.0Bluetooth Headphones and Sleep Eye Mask 2 in 1. Jarvania sleep headphones use advanced Bluetooth 5.0 which worked better than other Bluetooth 4.2 type. Bluetooth sleep headphones mask blocks light and noise to make your sleep better, listen to music without wearing additional headphones, which make you fall asleep faster and no risk of enlacing with the neck. Built-in high-quality speakers and microphone, hands-free listening and talking, callingIt is the best gift.Upgrade Chip BatteryBattery Chip is upgraded which is the best chips for Bluetooth Product. Built-in 200mAh high-performance battery, Charge about 2-2.5 hours provide more than 8 hours playing time. It is red light when charging, and blue light on when full charged. .COMFORTABLE MATERIAL and WASHABLEMusic Bluetooth sleep headphones shade is made of ultra soft cotton, provide you a soft and comfortable feeling. Unique design of this Bluetooth headphone mask has no risk of enlacing with the neck, no pressure on eyes. Fabric liner separated from stitching is not defective, it is the place to take out the Bluetooth module, wash the sleep eye mask. Adjustable Velcro, fit for both adults and kids, also a great gift idea. .RELAX at ANY OCCASIONIt is the best gift for regular travelers to sleep on long flights, it is also the best protection and relaxation for your eyes when you sleep at home blocking the light absolutelyWith our Wireless Sleep Mask, it will immediately relax you while helping alleviate eye strain, insomnia and stress. Perfect for relaxation, nap, meditation, insomnia, whether at home, in a hotel or on the plane. .Adjustable SizeSize is 20.3-26.5inch, Velcro is adjustable, also fit big heads,sleep eye mask can be adjusted according to the size of the head.The delicate wiring connected to the speakers that go from ear to ear is very sturdy. .