Explore fashion while keep your head toasty and listening to your favorite tunes with the Boss Tech beanie style cable knit hat. This signature piece is Great for anyone working or playing outdoors! Whether your a running, skiing, working, or just hanging out, the Boss Tech knit hat allows you to listen to music and take calls while still being aware of your surroundings and helping keep you safe. Made of 100% acrylic knit stitching with a polyester interior lining that allows for comfort, warmth, breathability and flexibility, this hat will fit a wide range of head sizes and will return to its original shape after each use. For fun and functionality, weve built-in a hands free, stereo wired headset which is compatible with any standard 3.5 mm ported electronic device. Simply plug the cable into the head phone jack on your device and youre set to take calls, chat with your friends, or listen to music. The headset includes a 3+ foot long cable with a collar clip to secure the wire. To make calling easier, weve also included an inline microphone, answer and end call controls, and a volume control. The stereo headset can be unplugged or hidden away when not in use. All this fun and function is backed by the Boss Tech inc. name; a division of Boss Gloves established in 1893! Boss Tech Products is proud of Boss Gloves history as the oldest glove company in the United States.