DescriptionMade of material, the blindfold will ensure you feel comfortable while you have a good rest. It allows you to listen to music without wearing additional headphones, which make you fall asleep faster.Wireless sleep headphones block light to make your sleep better, allows you to listen to music without wearing additional headphones.Features- Color: Black. - Material: Fabric. - Size: About 36x11x0.5cm/14.2x4.3x0.2 inch. - Battery: 150mAh - Charging voltage: 5V - Charging electricity: 150-200mAh - Power: 5w. - Charging time:1-2h - Built-in speakers and microphone, bring you stero surround sound experience, enable you to talk on the phone hands-free. - Built-in battery, long playing time, enough to support the whole night. - Wireless sleep headphones block light to make your sleep better, allows you to listen to music without wearing additional headphones. - The eye patch has a flexible hook and loop fastener, you can adjust the strap to the most proper position until it fits your head well. - for travel, business trip, office breaks, insomnia, etc.