CTA Digital iPad and iPhone 4/4S Radiation-Safe Telephone handset, Black (PAD-RSTB) Slim and stylish, easy to use spring retractable cord handset design Radiation safe handset protects from cellular radiation during telephone call Compatible with iPhone 4, iPad, iPad 2 or other device with 3.5mm jack Great for Skype or internet phone calls with iPad Elegant light-weight design, so you can use anytime, anywhere Includes a built-in answer/end button, simple convenient operation