Mace Brand 80733 Personal Alarm Keychain (Blue)

• Provides 130 dB of siren-like sound to disorient attacker and get attention of others;• Safe and easy to use in all 50 states ;• TSA-friendly for carry-on luggage;• Operates with the simple push of a button; deactivation button on rear of unit;• Backup whistle is built into the base of the alarm unit;• Dimensions: 3 in. x 1.5 in. x .75 in.;• Includes keychain and three 1.5-volt AG13/LR44 batteries;• Blue;