Product Description Material: Polyester Cotton Color: Grey, Black Speaker: 32 Ohm 0.05W Battery: 150mAh Battery 3.7V. 2 hours charging, 8 hours listening to songs Quantity: 1 piece Package Contents: 1*Bluetooth Sleep Eye Mask Shade 1.Perfect Eye Mask for Sleep and Travel Our wireless sleep mask is made of skin-friendly, soft and breathable material. It's lighter and more compact to carry around with 2" music headphones and sleepmask perfect for home, work, business and travel. 2. Improved Bluetooth Eyewear 5.0 and 10 Hours Playtime True HD Hi-Fi sound with the latest wireless Bluetooth 5.0 allows you to easily pair your smartphone or iPad with your Bluetooth device. Just charge for about 2 hours, you can play for 8 hours, andyou can enjoy music all night while you sleep. Great for those light sleepers. 3. Nose Ring Nose Bridge Design The nose is specially developed to upgrade the bluetooth eye mask. The soft nose area makes you feel more comfortable without pressure. They are resistant to all kinds of light and are perfect for anyone sleeping in completedarkness. 4. Adjustable and washable Headphones and Bluetooth modules are adjustable. You can always place the headset in the best position until it fits your ear. When you need to clean the goggles, just remove the headset and bluetooth module to use. 5. Material The bluetooth sleep mask is made of skin-friendly, soft and breathable material, giving a soft and comfortable feeling. It is very breathable and comfortable for deep sleepers. Give it a try, you will love it.