Bluetooth Beanie Music Hat Smart Beanie Headset 4.1 Wireless Bluetooth Beanie Cap Soft Warm Beanie Hat Built-in Microphone and HD Stereo with Hand-free Calling Music gift for Outdoor in Winter (Black) PERFECT MUSIC EXPERIENCE: Enjoy advanced digital sound for your music, balanced deep bass, dynamic mid-range & crystal clear high notes while staying warm, high performance stereo speakers. BLUETOOTH 4.1 TECHNOLOGY: Easy and fast to pair with cell phones, tablets and other Bluetooth enabled music devices, wireless range up to 33 feet. SOFT & COMFORTABLE FABRIC: 100% Soft-Spun Acrylic,double knitted beanie,keep your head warm, Stretchable high quality knit material to fit all sizes and shapes. FULLY WASHABLE & LONG-TIME STANDBY: Easy to remove and re-install headset speaker driver from the beanie hat for washing.Built-in rechargeable battery ,over 6 hours playing time. SECURE-FIT FOR MOST INDOOR &OUT DOOR LIFTSTYLE: such as running, skiing, skating, hiking, camping, dog walking, holiday travelling and home office working so on. 12 month warranty and friendly customer service.