... reduction system 4.Contracted design Supports for i phone,PC ,notebook,computer,MP3,MP4,MP52.Radiation protection ... phone handset ,cell phone headset anti-radiationvalume control Feature: 1. Radiation protection(Reduce 96% radiation)2. Contracted design3. Crystal ... Green.Pink.Yellow. 1. Radiation protection2. Antiquet style3. Crystal clear voice4. Noise reduction5. plug-play6. Compatiable with ...