HTC One Mini Case (M4), MPERO Collection Stealth Case for HTC One Mini M4 - Black Specially designed Stealth Case for HTC One Mini M4. Made from only pure PC and ABS plastic materials. No mixes or blends. Precisely engineered one-piece design for easy install and secure snap installation. Made of the highest quality mould material for maximum protection and durability. MPERO is a protected trademark.