... Function VOL button , Noise Reduction, Clear Voice4. Compatible with iPhone/iPad,or optional model.5. Receiver and microphone function6.Connectors: OD3 ... , black, pearly white)15. Material: ABS Plastic, or Plastic with Rubber paint, or Plastic with color oil and PU cord.Advantages Of the ... radiation from the cellphone,make you have a healthy and safe call. 6. Through the Volume Control buttom to control ...