1.iPhone & iPad handset. 2.Radiation proof. 3.With sidekey volume & LED light. 4. ... don't need to adjust the largest volume from mobile phone)7.LED light,aswering/hanging up button1.Frequency ... 3.5 mm DC plug 7.supported adjust the mobile's volume 8.Dimension: 21*6*6.7 CM ... purple, yellow, pink, green, orange, black, whiter, pearly white). Radiation Proof with iPhone & iPad Handset ( CE,FCC,ROHS Passed )