Review: mik Sound Case cranks up the volume on your iPhone

9 to 5 MacReview: mik Sound Case cranks up the volume on your iPhone9 to 5 MacThe mik Sound Case is a new type of phone case available for the iPhone 4/4S and iPhone 5/5s. It amplifies the phone's speaker by an additional 15 to 20 decibels and improves the clarity and quality of the sound. By blocking the speaker, the case ...