The kh-security Outdoor Alarm is a protective alarm that can be attached either with a carabiner to backpacks, bags, belt loops, etc., or by a key ring to a keychain. Pulling the metal pin attached to the key ring downward activates a very loud continuous alarm. Unlike our other alarm devices, the metal pin remains in the device and cannot be completely pulled out. This has the advantage that the metal pin cannot be lost and the alarm device stays attached to the item it is secured to after activation. This prevents it from being stolen or destroyed by an attacker. The alarm only stops when the metal pin is pushed back up. While the alarm is activated, the four integrated LEDs also flash. Always carry the Outdoor Alarm with you, and you will have a helper that provides protection against robbery, harassment, and assault. Attackers will be deterred, and passersby will be alerted.