Features:High quality Hands-Free Stereo Headset w/ microphone for Apple iPhone 3G.No volume control.Includes Mic with Play/Pause/Change Song Function.Excellent sound quality and super clear sound.With one press you can answer your call immediately (very convenient while you are listening to your favorite music) once the call hang up, your favorite music will come up again automatically and you don"t need to touch anything.Can also toggle the Play or Pause for your music with a simple press on the On/Off button (you don"t even need to touch any icon on the iPhone screen for this, very convenient right).Double press on the microphone, it will forward to the next song.Specification:Driver Unit: 14mm SpeakerMicrophone: 3.0x1.5mm/ -62+(-)3dbSenstivitity: 116dB +(-)3dBFrequency range: 20Hz- 20000HzPlug: 3.5mmColour:WhiteCord Length: 1.2mPackage:1 x Stereo Earphone / Headphone with MIC