SYSTECH SE-680 Sport 3.5mm In-Ear Earbuds Headphones Stereo Super Bass Headset Earphone with MIC for Computers,iPad,MP3/MP4,Moblies-RED HD STEREO SURROUND SOUND; Powerful bass calm,Heavy thick but not muddy,not lack of treble,Moderate volume,there is a certain brightness,reverberation appropriate distortion High definition diaphragm material; If the sound of the instrument itself should be more than a rough texture, then the sound will seem harsh sounds. So delicate and vivid sound,IS our goal STORAGE COMES WAY; Prevent line winding,and easy to carry COLOR:RED;SPEAKER:10MM; POWER:2MW(0.178V); PLUG TYPE:3.5MM FREQUENCY:20HZ-20KHZ; Impedance:165%; CABLE LENGTH:1200MM