These Harman Kardon headphones are built to go over the head and features modern wireless Bluetooth technology, so that there are no tangled cords to deal with when wearing them. These wireless headphones operate on a rechargeable battery through the use of a USB, which will last up to 12 hours to enjoy any kind of music the user chooses. A big advantage to these BT over the head headphones is that they can still be used even after the battery dies, which is done through the use of a 4.58-foot cable that is included with the headphones upon purchase. The Harman Kardon headphones are built with soft black leather ear pads so that the user can obtain maximum comfort when wearing them, and have a closed back design to keep out external noise. There are playback buttons located directly on the ear cup for added convenience, as well as the ability to self-adjust the BT over the head headphones in order to get the perfect fit. These wireless headphones are able to fold up, making them easily portable to take anywhere. The Harman Kardon headphones come with a carrying case, small and large size headbands, an audio cable, a USB charging cable, and an owner’s manual.