Esseemoney Waterproof Shockproof Dirt SnowProof Case Cover For Samsung Galaxy Alpha SM-G850 Material: PC + silicone Compatible models: Samsung Galaxy Alpha SM-G850 NOTE: It's a complete seal case, the case can't use the side button, so it also proofs the voice, it's not for everyday use purpose. You can only use the home button and touch screen, cannot use all other buttons of your Phone when it is in the phone case.