BearsFire Wireless Bluetooth Music Hat Knitted Winter Hat Magic Hat Headphone Headset Earphones MP3 Speaker Music Player Hands-free Hat Women/Men Winter and Spring Warm Hats Beanie Hat (Black) The built-in stereo removable speakers are capable of delivering amazing audio so you can enjoy your playlist anytime anywhere Medium weight is perfect for spring,fall, winter. Long standby time, easy to recharge Fully washable (remove the Internal speakers from their pouches) Experience wireless freedom when listening to music or taking calls while jogging, running, skiing or doing various activities Stay warm and enjoy hands-free music and calls; Perfect for outdoor sports running skiing skating hiking working out dog walking holiday travelling and so on