1.radiation proof 2.Charger dock+handset 3.For iphone 4g/3gs/3g 4.multitaskers ... Function charging and answering call landline Put your iPhone on the holder, and it will benefit ... white black,yellow,red,blue multitakers interact with the iPhone's touchscreen to send emails or play ... control, if necessary, please adjust for iphone mobile phone cell phone charger station with handset for Iphone4/3g/3gs