Abstract: The invention contemplates a personal safety device in the form of a whistle which has the appearance and action of a police whistle, while providing for retention of and ready access to essential items and data, such as a key, a pay-phone coin, and various personal-identification data and/or emergency instructions. The cylindrical body of a whistle is extended at one or both axial ends, beyond internal closure of a cylindrical ball-race whistle chamber. Such extensions define axially open chambers for retention of a key, a coin and other items; the mouthpiece arm of the whistle establishes a passage for tangential delivery of blown air to the ball-race chamber, and provision is made alongside this arm for separate accommodation of the stem of a key which is accessible via one of the axially open chambers.