BL Tempo On:Ear Headphone Super Bass Headphone Product description High:performance drivers: from the in:ear 9mm to the ear bud 15mm and onto the on:ear 40mm, tempo headphone drivers generate an outstanding frequency range of 20hz to 20khz. The resulting response is clear, powerful jbl sound with exceptional bass and smooth vocals. Padded headband and ear cups: jbl tempo on:ear headphones have an adjustable, padded headband and padded ear cups that self:adjust for alignment. You’ll be well:adjusted for a comfortable, longer listening experience. Folding, closed:back ear cup: the jbl tempo on:ear headphone ear cups fold flat when you’re not using them, making the headphones easy to transport and store. The closed:back design provides a more private listening experience. Jbl carrying pouch: award:winning sound is worth protecting. All jbl tempo headphones come with protective carrying pouches.features on:ear headphones with adjustable padded headband self:adjusting earcup alignment fold:flat earcups for easy storage and transport large 40mm speaker drivers gold:plated plug frequency response: 20 hz:20kh.