iPhone 4 Bumper, Apple Wiki
The Apple iPhone 4 Bumper was released by Apple in June 2010 as a protective cover for the iPhone 4. It covers the metal band around the perimeter of the iPhone while leaving the back surface visible. The iPhone 4 had a highly publicized issue in which the antenna configuration could lead to reduced signal reception if the user held the phone in a particular manner. On July 16, 2010, Apple began offering such customers a free bumper to insulate the antenna during use. The bumpers were withdrawn
An iPhone with Bumpers - Apple's iPhone 4: Thoroughly Reviewed
I currently own a Skullcandy Vandal and have have it for years but which one would you pick Skullcandy Vandal or Apple iPod Hifi : r/ipod
Apple iPhone 4 AT&T review: Apple iPhone 4 AT&T - CNET
آيفون 4 - ويكيبيديا
Review: Apple iPhone 4 Bumpers
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iPhone 4, Apple Wiki
iPhone 4, Apple Wiki
iPhone 4, Apple Wiki
Review: Apple iPhone 4 Bumpers
One Case to Fit them All: Apple Redesigns iPhone 4 Bumpers
An iPhone with Bumpers - Apple's iPhone 4: Thoroughly Reviewed
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iPhone 4, Apple Wiki