The RHA T20i is just the product for you if you value sound quality and want to operate your music with a remote control. Thanks to the frequency range of 5 to 40,000 Hertz, your audio will sound very detailed. This means that you won't miss a single detail when listening to your favorite music. Thanks to the included interchangeable filters, you can change the frequency response. Choose the filter type that makes your music sound best. This lets you optimize your listening experience according to your taste in music. The remote control in the cord lets you accept phone calls and control your music. This lets you keep your phone in your pocket when you accept a phone call or when you forward to the next track.