SOFT SENSIBLE COMFORTABLE & WARM - Features premium double soft knit to provide the maximum comfort delicacy and secure-fit mobility for most versatile lifestyle indoor sports-active outdoor or everyday usage without compromising the convenience.</br>LOUD & HD MUSIC EXPERIENCE - Enjoy enhanced music listening experience with advanced digital sound balanced deep bass dynamic mid-range & crystal clear high note while staying warm delivered by high performance stereo loudspeaker driver.</br>ONE SIZE FIT ALL & UNIVERSAL WIRELESS TECHNOLOGY - Stretchable high quality knit material to fit all sizes and shapes. Universal Bluetooth v4.0 technology with forward/backward compatibility to connect to all other Bluetooth enabled media player devices including smartphones tablets iPhone iPad Android Samsung Galaxy laptops PC... etc.</br>HUMAN ENGINEERING DESIGN - Intuitive control buttons & high density built-in rechargeable battery to manage 7hrs of hands-free calling and 5hrs of wireless remote music streaming?? from up to 33 feet of distance with free line of sight. Built with easy-access MicroUS"charging port (MicroUSB Cable included).</br>FULLY WASHABLE - Unprecedented zipper and velcro design to remove or re-install headset speaker driver and battery component easily in seconds from the beanie for washing purpose. 100% risk-free 1 year manufacturer warranty included.</br