Easily connect to and switch between devices like your pc tablet and smartphone with a full set of on ear controls laser tuned drivers and a built in equaliser give you high digital stereo that immerses you in your music and calls and a noise canceling microphone reduces background noise set your audio free roam up to 12 m 40 ft from your pc using the tiny nano receiver or pair with your smartphone or tablet using bluetooth actual wireless range will vary with use settings and environmenta