Maxboost Hybrid Slim Protective Snap-on Case for Apple iPhone 4 / 4S (Compatible to hybrid iPhone 4/4S Battery Case, No Battery Included, Fits Any Version of iPhone 4 & iPhone 4S) This stylish ultra slim protective case is compatible to Apple's iPhone 4 & iPhone 4S any version including AT&T, Sprint, Verizon. The case is guarantee to work with any maxboost hybrid detachable battery case with an innovative two piece detachable design. (Battery is not included in this item) Super-slim design and perfect fit that adds minimal bulk to your iPhone 4 & iPhone 4S Offers a simple 1 piece hard case that features our elegantly slim design, soft touch finish, and offers protection against bumps and scratches. Half-ounce ultra slim snap-on case which features tons of different colors and design patterns from Maxboost