ARISTA 16-098 6.3mm (1/4") to 3.5mm (Mini) Headphone Adapter Protects iPhone 3G's screen through two innovative ways-an adhesive-free protective screen film,iSkin's ViSOR face shield. The revo2 fits seamlessly with the remarkable iSkin revoClip (sold separately), so you can remain safely connected to your beloved iPhone 3G