Product description Size: 25*10cm Color: black, gray Material: Yang Nizi Package content: 1*Bluetooth headband 1*USB data cable 1*Instruction 1.Great Multi Bluetooth Headband Sleep HeadphonesSleep Headphones & Sleep Mask & Sports Headband 3 in 1. Bluetooth Headband allows you to listen music without having to wear additional headphones, and protect you from being disturbed by your mess hair and sweat. Built-in microphone to let you won't miss any callings. Perfect suitable for gym, workout, running, yoga and other outdoor activities.Even if you don't use the music, the eye cover is comfortable enough to sleep in any position. 2.Longer Service Time and High-quality Playback Sleep headphones offer an upgraded usb chargeable battery. Quality chip set ensure clear sound and lossless music even the headphones are in the sports headphones. Built-in microphone and volume control buttons which enable users to answer hands-free phone calls and handle previous/next song without having to use your phone.Bluetooth headband bring you peaceful sleep all night 3.Super Soft and Breathable Headband : Bluetooth Headband sleep headphone is extremely soft and lightweight, which is made of durable braided cord and offer a breathable mesh lining, will easily stretch to fit all head sizes, also incredibly soft and hypoallergenic. Bluetooth headband headphones are washable, simply remove the speakers and clean the band.Useful for wearing an eye mask for sleeping so the light blocking feature is helpful. 4.Bluetooth Stereo Sound with Thin SpeakersThickness is only 0.25 inch speaker, which is very comfortable for sleepers. True HD HIFI sound featuring latest Bluetooth technology that produce great sound quality, bluetooth can pair your any Smartphones iPad Tablets easily.Compatible with Android and Ios. It is the gift for family or friends on travel and airplane in Festivals. 5.Fashion, Comfy & WashableOur headphones headband is made of special fabric, compressive on pressure to protect your ears and great breathability. Please take out the bluetooth module before full wash the headband.