Put an Emphasis on Safety No Matter What Time They Commute at with This Whistle Light & Keyring Chain. This Colorful & Practical Promo Features a White Light & a Safety Whistle & a Squeeze on & Off Activation. Button Cell Batteries Come Included & Inserted for Your Convenience. It is Necessary When Travelings & in Emergency Situations, You Can Press Button to Activate LED & Blow the Whistle to Get Help. Attach Them to an Existing Keyring & be Ready for Emergencies at Any Time. Choose Your Whistle Color & Add Your Brand to Complete the Promotional Look. From Safety Campaigns to Tradeshow Appearances, This Keyring Chain is Sure to Please.