Megadream Bluetooth 3.0+EDR Washable Music Cap Knitted Beanie Hat Headwear Headphone with Hands-Free Microphone for iPhone 7S 6S 6 Plus 5S 5 iPad Samsung Galaxy Long-lasting Enjoyment of Music: Built in rechargeable Li-Ion battery,about 5 hours talking/playing time, 2 hours charging time,30 hours standby time, so you have less time charging and more time doing.(USB charging cable included) 100% Knitted Beanie Music hat, protects you from cold winter and will also allow you to listen to music and talk while doing variety of other activities V3.0+EDR Bluetooth version, available for most of devices with Bluetooth function With the popular head shape designs and high-quality cotton, you will not only look fashion but also feel warm Fully Washable:easy to take the speaker down and install so that you could always clean it up and keep clean all the time