Personal Safety Alarm

What is defendme®

defendme® is a sleek personal alarm featuring a siren to maximize attention to yourself when needed for self defense. The piercing 120 dB siren can be heard up to 300 feet (100 meters) and will provide a practical protection and deter dangerous threats when seconds count!

This personal alarm is perfect for anyone and particularly for young people, college students, lone workers, joggers, elderly, nurses and sales representatives.

Easily attach defendme® to just about any strap on a backpack, purse, or even a belt-loop.

4.5 Stars

Customer Reviews

Perfect little alarm!

“Thumb drive sized. Worked right out of the box. Loud enough inside to make someone cover their ears. Loud enough to attract attention if set off outdoors.”

Main Features

Powerful 120dB siren  •  Quickly activate by pulling the alarm  •  Easy to access and use  •  Compact and affordable  •  A must have for all women  •  Legal to carry in all 50 states


1. Pull the lanyard looped to the half circle ring away from the alarm.
2. The 120dB siren will sound.


3. Place the half circle ring back into the alarm until it snaps into place.
4. To replace, remove cover and insert a new battery.


5. It is recommended that defendme be tested periodically to ensure battery performance.

Voice of the People

Testimonials from our customers

“I feel so much safer now that I have the alarm. The alarm is earsplitting, loud enough to attract attention when you are in need of help. It is small enough to wear under my shirt so nobody knows it is there except me. I like the way it works, you pull down on the bottom of the alarm to make it work… I recommend this alarm for everyone.”

So small and very loud

“Deafening! Don't mess with my daughter now :o)”


“The alarm is very easy to hang on a purse or carry in a pocket!”

Easy to hang


Where to Place Product

defendme® can be conveniently worn on your person, purse or bag for quick accessibility.

Technical Specifications

  • Dimensions:

    2.80L x 1.25W x 0.5D (in.) | 7.15L x 3.15W x 1.30 (cm.)
  • Weight:

    0.7oz | 20 gr
  • Materials:

    ABS plastic | Aluminum
  • Loudness:

    The alarm is about 120 decibels (can be heard up to 300 feet)
  • Batteries:

    Replaceable CR1632 3V (x2). About 30 minutes of continuous loud sound
  • SDS:

    Lithium Metal Batteries
    Special Provisions apply for US DOT | IATA
  • In compliances with:

    CE Mark | RoHS


Product Usage and Guidelines

defendme® Extended Demonstration

defendme® How to Use

defendme® Personal Alarm

defendme® Quick Demonstration

defendme® Demonstration

Did You Know?

In the US, over 650 women are sexually assaulted every day.

Who are the Offenders?

Who are the Offenders?

Who are the Offenders?

Who are the Offenders?

Out of 100 Rapes

Out of 100 Rapes

Out of 100 Rapes

Out of 100 Rapes

Who's at risk? By Age

Who's at risk? By Age

Who's at risk? By Gender

Who's at risk? By Gender

Frequently Asked Questions

The alarm of the defendme® is about 120 decibels and can be heard up to 300 feet(100 meters).
The alarm will continuously sound for approximately 30 minutes
Grab the lanyard and firmly pull out the tab.
Put the tab back in the slot and the alarm will stop ringing.
There is no timer built in. The alarm will sound until the tab is replaced or the batteries die. It is recommended to check the batteries at least every 6 months.
To access the 2 batteries (CR1632 3V), the top and bottom plastic case covers have to be removed. Option 1: to open the case, make sure that the tab is in place. Twist the tab until the case opens. Option 2: remove the tab, insert the tip of a flat screwdriver in the opening and gently twist until the case opens.
With its lanyard, defendme® can easily be strapped to just about anything (backpack, purse, briefcase or even a belt-loop.
As a non-lethal weapon, defendme®, like any other personal alarm, is legal in all 50 states and approved by TSA.

warranty-badge Your purchase includes a 1 year product warranty.

The batteries must be checked and changed regularly to avoid any corrosion and damage to the tool. Failure to do so will void the warranty.