Knowledge Zenith KZ-ED9 earphones different from the past, it has some critical equipment. Subject to the high sensitivity of the diaphragm, the sound signal processing in some not very good equipment easy to produce muddy audio. Some mobile phone users might not be able to play a high-end sound ED9 level, tested Apple, Samsung, and other well know brang models can be ED9 exhibit a relatively good state.

Knowledge KZ-ED9 music relatively strong sense of atmosphere, it can easily output a large dynamic range than the range, specializes in symphonies, European and American pop music, heavy drum music. For a street or exercise wear, it can bring a better sense of melody.

A number of leading technology patents create high-end sound quality.

Simple one button multi function remote control button, compatible with iPhone, iPod and other devices with mainstream iSO security desk phones support hands free calls and music playback, pause, switch, built-in full directional noise cancelling microphone, which can effectively avoid the call the noise ensuring high-quality call.