Prepared Hero™ Defense Alarm 2.0

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DEFENSE ALARM 2.0

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Protection That's Simple Enough for Anyone
3 Simple Steps

Order Your Alarms

Get one for everyone who matters. Pick the right bundle and we will ship it straight to your door, fast.

Clip It and Carry It

Attach the oval carabiner to any keychain, purse, or bag strap in seconds. It stays right where they can grab it without thinking.

Pull the Pin. Get Immediate Help.

One pull activates a 133-decibel siren and a blinding LED strobe at the same time. No aim. No strength. No training. Just instant, unmissable attention.

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Become A Prepared Hero
& Keep Your Family Safe

When someone you love is walking alone and something feels wrong, the gap between fear and safety is measured in seconds. The Prepared Hero™ Defense Alarm 2.0 exists to close that gap.

We made it louder, smarter, and simpler than anything else available so that your daughter, your mom, and you never have to face that moment without something real in your hands.

Protection for Every Situation

Parking Lots
Campus Safety
Travel
Late-Night Commutes
Senior Independence
Everyday Carry

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What Makes the Prepared Hero™ Defense Alarm 2.0
Smarter, Louder & Safer Than the Rest

Aim and Nerve

Requires Aim and Nerve

Pepper spray needs a calm, steady hand and the confidence to aim at an attacker. Under real stress, most people freeze before they ever get the cap off.

One Pull. No Skill Required.

The Prepared Hero™ Defense Alarm 2.0 activates the instant the pin is pulled. No aim. No strength. No calm required. Anyone can do it in a fraction of a second.

Older alarms

Dead When You Need It Most

Older personal alarms use disposable batteries that drain unpredictably. Many people discover their alarm has no power only when they actually need it.

Always Charged and Ready

USB-C fast charging gets the HDA 2.0 to full power in just one hour, and standby battery life lasts for months. A built-in low-battery indicator tells you when it is time to top up.

Not Loud

Not Loud Enough to Matter

Many personal alarms on the market top out at 120 decibels or less. At that volume, the sound can be absorbed by distance, traffic, or a closed door, and help may never come.

133 decibels, the Industry-Leading Standard

The Prepared Hero™ Defense Alarm 2.0 delivers an industry-leading 133-decibel siren, measurably louder than leading competitors. That is a sound that carries through walls, across parking lots, and over street noise.

Hidden in a Bag

Hidden in a Bag, Useless in an Emergency

A safety device that is buried in a purse or difficult to find offers no real protection. In a real emergency, fumbling costs precious seconds.

Clips On and Stays Ready

The upgraded oval carabiner attaches securely to any keychain, purse strap, or backpack. The device stays visible and accessible, exactly where it needs to be.

Accidental Activation

Accidental Activation, Wasted Battery

Many alarms have no auto shut-off, meaning an accidental pull in a bag drains the battery completely before anyone knows it happened.

Smart Auto Shut-Off Built In

The HDA 2.0 automatically shuts off after 5 minutes if not manually silenced. Battery life is protected, and you never have to worry about an accidental drain.

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Why 3,500,000+ Families
Trust
Prepared Hero™

Screams Loud Enough for the Whole Block to Hear

At 133 decibels, the Prepared Hero™ Defense Alarm 2.0 is measurably louder than competing personal alarms. That volume is not just loud, it is disorienting to an attacker and impossible for bystanders nearby to ignore. When your daughter or your mom pulls that pin, the whole area knows it.

Built to Last, Not to Fuss With

The HDA 2.0 is built for real life, not a controlled environment. The rechargeable battery holds standby charge for months, the USB-C port charges it fully in one hour, and the low-battery indicator gives you plenty of warning before it needs attention. It is the kind of reliable that lets you stop worrying.

Compact Enough to Go Everywhere

At just 100mm long, the Prepared Hero™ Defense Alarm 2.0 is genuinely small. It clips to a keychain without adding bulk, tucks onto a bag strap without getting in the way, and travels in a carry-on without a second thought. When it goes everywhere, it is always there when it is needed.

No Training. No Strength. No Hesitation.

One of the hardest truths about personal safety is that most tools require training, practice, or confidence under pressure to work. The Prepared Hero™ Defense Alarm 2.0 requires none of those things. Any person, any age, any level of fitness, can pull a pin. That is the whole action. That is all it takes.

Three Colorways, Made to Be Personal

Protection should feel like something you actually want to carry. The HDA 2.0 comes in three premium colorways with soft-touch matte finishes. It is designed to match how your daughter, your mom, or you already carry yourself, not to feel like a generic safety product.

Smart Enough to Stay Out of the Way

The soft volume ramp prevents a jarring accidental startle, and the 5-minute auto shut-off means a bumped pin in a bag will not drain the battery or set off a false alarm at the worst moment. Intelligent design means the HDA 2.0 only makes itself known when it is actually needed.

1Screams Loud Enough for the Whole Block to Hear

2Built to Last, Not to Fuss With

3Compact Enough to Go Everywhere

4No Training. No Strength. No Hesitation.

5Three Colorways, Made to Be Personal

6Smart Enough to Stay Out of the Way

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How Many Alarms
Should Your Family Have?

Most families need more than one. Think about everyone in your life who walks alone, commutes late, travels, or lives independently. Your daughter going to work at night. Your mom driving herself to her card club. You heading out to run errands after dark. Each person needs one attached to their everyday keys or bag, always there before they even think to look for it.

We offer bundle discounts, get more and save more

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30-Day HERO Guarantee • Ships in 24 Hours

The Only Personal Alarm
You Should Trust

Industry-Leading 133-Decibel Rating

USB-C Certified Fast Charging

Built Around How People Actually Use Personal Alarms

30-Day HERO Guarantee

Bundle Discounts Now Available

Get Prepared Today!

30-Day HERO Guarantee • Ships in 24 Hours

Hear From Families
We Have Helped Protect

86%

10%

4.9

3,500,000+ Families Protected

Mom Approved

"This is wonderful for our daughter who walks to school. It's safe, not against her school rules, and gives her some security. You just pull the top off if there is a crisis or emergency and the siren sounds and light flashes."

Melly R.Verified Buyer

Great Peace of Mind!

Everyone needs to feel more secure. I know because a lot of people have problems with shopping and other activities. It's so easy to use that no one will know you have it. All you have to do is pull the top out from the bottom and the noise starts. It's loud enough to get someone's attention so you can get rid of the need.

Dana M.Verified Buyer

Great Security

My head is totally ringing afterwards. The light combine with the sound can really bother an attacker or animal close by. Even my dog didn’t like the noise. It was loud and bright flashes.

Jamie S.Verified Buyer