3.5mm Mobile Phone Headset for Iphone 4 1.Noise reduction System 2.HD Speaker Microphone 3.Volume up / down

Mobile Phone Headset for Iphone 4 1.Noise reduction System 2.Anti-radiation

3.DC plug: 2.5mm or 3.5mm DC plug optional for different Mobile phone.

4.Answer Button: answering or hang up the phone.

5.Volume control Button: press top is increase volume, press the bottom is turn down the volume.

6. Color availbale: white, blue, red, pink,black, green,yellow, purple

7. high quality

3.5mm mobile phone Headset/headphone for iPhone 4