This is a three-in-one product of sleep headphones, sleep mask and sports headband. The Bluetooth headband allows you to listen to music without wearing extra headphones and protects you from hair and sweat. Built-in microphone, never miss a call. Great for gym, workout, running, yoga and other outdoor activities. Even if you're not using music, the eye mask is comfortable enough to fall asleep in any position. The Sleep Headphones offer an upgraded USB rechargeable battery that provides over 6 hours of playtime. High-quality chips ensure clear sound and lossless music, even if the earphones are sports earphones. The built-in microphone and volume control buttons allow users to answer calls hands-free and operate the previous/next song without having to reach for the phone. The Bluetooth Sleep Headphones are very soft and lightweight, made of selected spandex material, high elastic and comfortable, can be easily stretched to fit all head sizes, and very soft and breathable. It's washable, just remove the speaker and clean the strap. Using Bluetooth 5.0 technology to produce excellent sound quality, Bluetooth can easily pair with iPhone X/6/7/8/, Samsung, Huawei, Xiaomi or any other smartphone or tablet. Compatible with Android and iOS. Material: Spandex Color: Black Size: 27 x 8cm Bluetooth: V5.0 Weight: 200g Package List: 1 x Bluetooth Headband 1 x Cable 1 x Manual