This super spiffy iPhone case is simple, yet ergonomic. This case has multiple purposes, yet it is only a cell phone case and a whistle in one. There are such things as “rape whistles” as unfortunate as that may seem, although their purpose is for a good cause; many of us don’t just carry those around. Now with the Hoo whistle case we still wont. You are easily able to use this whistle in any emergency situation such as preventing crimes or calling for help. The Hoo whistle phone case is a perfect solution to stop involving ourselves in dangerous situation unintentionally. It’s safe and effective!