1) 4-pole 3.5mm mic supported audio jack
    Handle music and microphone with just one 4-pole audio jack， to work with iPhone， Blackberry and HTC.
    Also works with compatible 3.5mm audio devices - iPad， iPod， MP3 and selective handphones.

2) auto switching calls + music
    Built in IC diverts incoming/outgoing phone calls automatically while you are in music listening mode.
    When a phone call ends， it would resume to music play mode or vice versa.

3) multi-functional control
    Performs 5 functions:
    - microphone inlet for voice conversation
    - pause or resume music play.
    - answer or end phone calls manually. 
    - volume +/-
    - on/off

4) detachable PC audio converter with mic
    Extend usage beyond smartphones. It converts 4-pole to 3-pole audio jack to work with any PC or notebook for music 
    listening and handling internet voice chat. Works with Skype， MSN， Yahoo Messenger etc.

5) immersive HD sound
    Energize your day with great music. HD speakers deliver Highs， Mids and Lows in perferct balance.

6) interchangeable ear-buds
    3-size interchangeable silicone ear-buds (S，M，L). choose the size that's right for your ears.