There are certain gadgets that could be immensely helpful I your self defense. Among the self defense products that are available you have different types of weapons and other products like the pepper spray, traditional weapons like the hand held spanner or throwing stars, and impact devices like the stun guns. But perhaps the most portable and one of the best products is the Electronic Pocket Whistle.  

Electronic pocket whistle is such a device that you do not even have to blow it.  You will only have to push a button and there will be a loud 120decibel whistle sound. The whistle can be used in various manners but its use in case of self defense in calling help cannot be undermined. It can also work as a locator in the emergencies. 

Like some other devices, electronic whistle does not stop the attacker from indulging into the act directly but is a good preventive. It will obviously not stun the intruder as in case of the stun guns but can very well raise an alarm for the law enforcing agencies prompting them to come to the rescue of the victim. 

The whistle that is around 4 inches long with 4 LR 44 batteries may be categorized in the group of the mace alarm & flashlight, which is also another example of electronic gadget that helps in raising an alarm to prevent the attacker rather than directly intervening with the attacker preventing the attack.