Built-in Microphone and Volume Control: Headphones with built-in mic delivers clear sound and enables hands-free talk.The volume control button also let you pick up calls and skip between tracks without missing a beat. Lightweight and Collapsible Design:Adjustable headband with the stretchable joint will fit anyone perfectly and even adjust for smaller heads for youth, teens, kids boys and girls. Folding design allows for easier storage and carriage. Power Stereo Bass and High-definition Sound: The enhanced bass speaker and breathable soft-padded cushion block yourself from the noise around you and experience a premium music experience.