Sentry Deep Bass stereo headphones with microphone are ideal to use with any stereo audio device tablets, iPad, laptops, smartphones, iPhone, iPod, CD players, MP3, computers, portable games and more. The 40mm dynamic drivers deliver premium digital stereo sound and rich deep bass. The headphones, with tangle-proof flat cord has a built-in hands free two-line microphone; click once to play/pause music and answer calls; click twice to fast forward to the next song; and, click three times to skip a previous song. Go hands free with the two-line mic design, made to listen to music and answer phone calls without having to touch a cell phone. The adjustable fitting deluxe two-tone color padded headband features color contrasting over-the-ear rotating ear cups.