1 Voice Beanie with Built-in Wireless Bluetooth Headphones - Light Grey Introducing 1 Voice - a Bluetooth enabled beanie with built-in headphones that streams high quality music from any of your portable devices. Superior audio quality: No more dangling wires. Sound disks and our Bluetooth receivers are built right into the beanie for unbelievable sound quality. The Bluetooth receiver is now completely removable, and can also be used to Bluetooth enable any wired acoustic system. Convenience and Comfort: No more ear buds constantly falling out of your ears, or worse  giving you an earache. An easy to re-charge battery that lasts 6-8 hours. Style/Warmth: The beanie is made of a tight knit to keep you toasty on a chilly day. Look good as you enjoy your favorite tunes while going for a run, commuting to work, or hitting the slopes. Unisex - One Size Fits All. Machine Washable