The brand new Black Jack 21,000,000 Stun with Alarm is the resulting culmination of feedback regarding the features people most wanted in a self-defense product. Not only does this new model feature a loud alarm, but features new Squeeze-N-Stun Technology. The stun can be activated quickly by simply squeezing it. This saves you valuable time by not having to fumble around for the right button to push and your tight grip around the unit prevents it from being knocked out of your hand. Self-defense experts say that a loud alarm is one of the best deterrents to attack. At the first sign of danger the alarm can be activated to call help and scare off an attacker. This ergonomic design provides you with a comfortable, firm grip that feels natural in your hand. Criminals love to lurk in the dark; when you illuminate the area with the bright flashlight, they often scatter. You can sound the 120 dB alarm to summon help and scare off your attacker. If the light and alarm do not stop them, the stun can be used. To prevent the stun from accidentally going off, the pin can be kept in a separate compartment when storing it. The stun will not work until the disable pin is inserted into the bottom of the unit and the safety is turned off. If the pin is inserted and the safety is turned off an alarm sounds. A lanyard worn around your wrist attaches to a disable pin on the bottom of the unit. If the stun is taken from you, the pin will be pulled out, preventing it from working. The electrical charge will quickly jump between three points on the top of the stun creating a loud, bright electrical burst. The slide-out plug on this unit allows for easy charging. Simply plug into a standard wall outlet. A durable holster with belt loop is included. The Black Jack 21,000,000 is made by Streetwise Security Products-the leader in the personal protection industry and comes with a lifetime warranty. See the enclosed instruction manual for complete details.