360 stereo noise isolating earphones with flex anti tangle cord system the stylish z 1 has 360 qube stereo noise isolating earphones with flex anti tangle cord system so youll only hear the music you want to enjoy key features 35mm plug with ni plate 10mm speaker with bass enhancement qube noise isolating technology flex anti tangle cord system sound sensitivity 105db 3bd channel balance 3bd at 1000hz rated input 3mw max in