Wireless On-Ear Headphone with Bluetooth aptX technology. closed system. 40mm dynamic speakers with neodymium magnet, nylon membranes damped and copper coated aluminum coils. Earphones sealed for optimum isolation from ambient noise and bearing in self-modeling removable magnetically foam. Rechargeable Lithium battery inside via USB with autonomy of 17 hours Banda adjustable bow. foldable earcups. Built with high-strength materials. Controls play / pause and control / microphone on the earcups. Leather Carry Case and traditional cable included. genuine leather trim and metal. Weight: 213gr.