Built tough in a metal aluminum housing with crystal clear sound, the Metal Bluetooth® Rugged Earbuds will hold up against it all. Take them to the gym, while you walk to class, or on your next flight and they'll provide you with 6 hours worth of jams. Charge them up again and be right back on the go. Utilize the in-line controls to play, pause, track forward, track backward, and adjust the volume as you GO. Their built-in microphone allows you to take calls quick and simple. With everything you need right in an earbud, why need anything else?