You can enjoy music all day long without any worry of frequent charging due to its attached tangle-free audio cable. It has Build-in Industry-leading high precision 30mm dynamic drivers for powerful sound and crystal clear calling sessions. GHP-250 is loaded with exceptional features such as portable and ergonomic design, soft cushion earmuffs that reduce sweat and heat, universally compatible with smartphones; tablets; laptops; etc, and free extra cushions.