Material: Polyester Cotton Color: Gray, Black Speaker: 32 ohm 0.05 watt Battery: 150 mA battery 3.7V Charge for 2 hours, listen to songs for 8 hours Quantity: 1 pc. Package Contents: 1 * Bluetooth sleeping eye mask for shading. Perfect Eye Mask for Sleeping and Traveling Our wireless sleeping eye mask is crafted from skin-friendly, soft, and breathable material. It's lighter, more compact, and can be taken anywhere. 2-in-1 Music Headphones and Sleeping Eye Mask These are perfect choices for home, work, business, and travel. Enhanced Bluetooth Eye Mask 5.0 & 10 Hours Playtime Experience Real HD high-fidelity sound with the latest wireless Bluetooth 5.0, allowing you to easily pair your smartphones or iPads. Simply charge for about 2 hours for 8 hours of playback, and enjoy music all night while you sleep. Ideal for light sleepers. Nose Bridge Design The nose area is specially developed to upgrade the Bluetooth eye mask. The soft nose area ensures maximum comfort without any pressure. They block all types of light, making them perfect for anyone who sleeps in total darkness. Adjustable and Washable Both the headset and the Bluetooth module are adjustable. Position the headset perfectly to fit your ears. To clean the eye mask, simply remove the headset and Bluetooth module for easy washing. Material The Bluetooth sleeping eye mask is made from skin-friendly, soft, and breathable material, providing a soft and comfortable feel. It's highly breathable and comfortable for deep sleep. Give it a try and you'll love it.