Arkon"s IPM511 features the NEW Slim-Grip holder and is ideal for use with ALL versions of the iPhone including the new iPhone 4, regardless of whether a protective skin or sleeve is used on the phone. If you"re using a smartphone, particularly with a gps application, Slim-Grip is the stylish, affordable, highly functional, quality cell phone holder that you"ve been waiting for. It features laterally adjustable support legs and a strong spring-loaded mechanism which securely grips your phone. The Sun Visor Mount is compatible with All vehicle Sun Visors and is an ideal location for Hands-free calling by speaker phone.